Spanish verb conjugation models

Verb yacer and its derivatives has multiple conjugation irregularities

Verb volver, its derivatives and verbs ending in -solver follow the conjugation pattern of regular verbs in -er except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: volver / vuelvo

Verbs ending in -olar follow the conjugation pattern of regular verbs in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: volar / vuela

Regular verbs ending in -ir

Verbs ending in -estir follow the conjugation pattern of regular verbs ending in -ir except for alternation in stem "e" -> "i" in imperative, indicative and subjunctive: vestir / viste

Verb verter and its derivatives follow conjugation pattern of regular verbs ending in -er except for alternation "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: verter / vierte

Verb ver has multiple conjugation irregularities

Verb venir has multiple conjugation irregularities

Verbs mecer, vencer and its derivatives, verbs ending in -ercer (ex. ejercer) follow conjugation pattern of regular verbs in -er except for alternation of "c" to "z" before "o" or "a" in 1st person of indicative present (venzo), all persons in subjunctive present (venza, venzas…) and 1st pers. pl. and 3rd pers. sg. and pl. of imperative (venza, venzamos, venzan)

Verb valer and its derivatives follow conjugation pattern of regular verbs ending in -er except for alternation "l" -> "lg" in several indicative, subjunctive, imperative forms and alternation "e" -> "d" in all persons of indicative future simple and conditional simple

Verb usucapir is defective verb which has two foms only (infinitive and past participle)

Verbs trocar and enrocar follow the conjugation pattern of verb sacar and also have variants with alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: trocar / troco / trueco

Verb traer and its derivatives has multiple conjugation irregularities

Verb traducir and its derivatives follow conjugation pattern of lucir except for having irregular forms in indicative past simple

Verb torcer and its derivatives follow conjugation pattern of vencer except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers. sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: torcer / tuerzo

Verbs ending in -eñir follow the conjugation pattern of verbs bruñir except for alternation in stem "e" -> "i" in imperative, indicative and subjunctive: teñir / tiñe

Verb tener has multiple conjugation irregularities

Verbs ending in -ender following this model and have alternation "e" -> "ie" in several forms: in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: tiende, enciende, hiende, defiende… The verb pretender is regular : pretende

Verb templar follows the conjugation pattern of regular verbs in -ar and also have variants with alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sing. and 3rd pers.pl. in imperative, indicative and subjunctive present: templar / templa / tiempla

Verbs ending in -temblar with diphtong following the pattern of pensar : piensa / tiembla

Impersonal verbs following the conjugation model of parecer but in 3rd person only

Verbs which stem ends in "ñ" and "ll" absorb unstressed "i": tañer / tañó, empeller / empelló

Verb soterrar follows the conjugation pattern of regular verbs in -ar and also have variants with alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sing. and 3rd pers.pl. in imperative, indicative and subjunctive present: soterrar / soterra / sotierra

Verbs ending in -uir follow the conjugation pattern of regular verbs in -ir except for addition of "y" before "a", "e", "o" in stem in imperative, indicative and subjunctive: sostituir / sostituye

The verbs like soñar follow the regular conjugation model of verbs ending in -ar except for the variation in verb stem "ue" in 1st, 2nd, 3rd pers. sing. and 3rd pers. pl. in imperative, indicative and subjunctive present: soñar / sueña

Verbs ending in -onar follow the conjugation pattern of regular verbs in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: sonar / suena, atronar / atruena, except for personar and its derivatives, malsonar, unisonar, apisonar, arrequesonarse, artesonar. The verbs tronar, retronar, atronar follow this conjugation pattern. The verb tonar and its derivatives are regular: detonar / detona

Verb soltar follows the conjugation pattern of regular verbs ending in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: soltar / suelta

Verb soldar and its derivatives follow the conjugation pattern of regular verbs ending in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: soldar / suelda

Such derivatives of hilar as sobrehilar, rehilar, ahilar follow conjugation pattern of regular verbs in -ar except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (sobrehílo…) due to accentuation rules

Verb servir and its derivatives follow conjugation pattern of regular verbs ending in -ir except for alternation "e" -> "i" in some indicative, subjunctive, imperative forms and gerund

Verbs ending in -errar with diphthong following the model of pensar: piensa / sierra except for soterrar, errar that have their own conjugation patterns and aberrar, aferrar, aperrar, berrar, desaferrar, desbecerrar, emperrar that are regular

Auxiliary verb ser has irregular conjugation

Verbs ending in -entir follow the conjugation pattern of regular verbs ending in -ir except for alternation in stem "e" -> "ie" and "e" -> "i" in several forms

Verbs ending in -entar follow the conjugation pattern of regular verbs ending in -ar except for alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative present and subjunctive: sentar / sienta

Verbs ending in -embrar follow the conjugation pattern of regular verbs ending in -ar except for alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: sembrar / siembra

Verb seguir and its derivatives follow the conjugation pattern of regular verbs ending in -ir except for alternation in stem "e" -> "i" and loss of "u" before "o" and "a": seguir / sigo

Verb salir and its derivatives have multiple conjugation irregularities

Such derivatives of humar as sahumar, desahumar, ahumar follow conjugation pattern of regular verbs in -ar except for alternation of "u" -> "ú" in some forms of imperative, indicative and subjunctive present (sahúmo…) due to accentuation rules

Verbs ending in -car follow conjugation pattern of regular verbs in -ar except for alternation "c" -> "qu" before "e" in 1st person of indicative past simple (saqué), all persons in subjunctive present (saque, saques…) and 1st pers. pl., 3rd pers. pl. of imperative (saquemos, saque, saquen)

Verb saber and its derivatives have multiple conjugation irregularities

Verb ruar follows the conjugation pattern of regular verbs in -ar and also have variants with alternation in stem "u" -> "ú" in 1st, 2nd, 3rd pers.sing. and 3rd pers.pl. in imperative, indicative and subjunctive present: ruar / rua / rúa

The verb romper and its obsolete derivatives follow the conjugation pattern of deber except for its past participle which is irregular: roto. The derivatives that are still used have regular participles: corromper / corrompido

Verb rogar follows conjugation pattern of llegar except for alternation "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: rogar / ruega

Verbs following this model conjugate like creer but have alternations in some forms: 1st pers. sg. Indicative present (roo / roigo / royo), all persons in subjunctive present and imperative (roa / roiga / roya…)

Verb rodar and its derivatives follow the conjugation pattern of regular verbs in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: rodar / rueda

Verb volcar and its derivative revolcar follow the conjugation pattern of verb sacar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: revolcar / revuelca

All derivatives of untar follow conjugation pattern of regular verbs in -ar except for alternation of "u" -> "ú" in some forms of imperative, indicative and subjunctive present (reúnto…) due to accentuation rules

Verb reunir follows the conjugation pattern of regular verbs in -ir but have alternation in stem "u" -> "ú" in 1st, 2nd, 3rd pers.sing. and 3rd pers.pl. in imperative, indicative and subjunctive present: reunir / reúne

Verb respailar is defective verb which has two foms only (infinitive and gerund)

Verb respahilar is defective verb which has two foms only (infinitive and gerund)

Verbs ending in -ollar follow the conjugation pattern of regular verbs in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: resollar / resuella

Verbs ending in -etir follow the conjugation pattern of regular verbs ending in -ir except for alternation in stem "e" -> "i" in several forms in imperative, indicative and subjunctive: repetir / repite

Verb renovar follows the conjugation pattern of regular verbs in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: renovar / renueva

Verb rendir follows the conjugation pattern of regular verbs ending in -ir except for alternation in stem "e" -> "i" in imperative, indicative present and subjunctive: rendir / rinde

Verbs reír and freír follow the conjugation pattern of regular verbs in -ir except for alternation in stem "e" -> "í" and loss of "i" in certain endings

Verb rehusar and its derivatives follow conjugation pattern of regular verbs in -ar except for alternation of "u" -> "ú" in some forms of imperative, indicative and subjunctive present (rehúso…) due to accentuation rules

Verb rehurtar follows conjugation pattern of regular verbs in -ar except for alternation of "u" -> "ú" in some forms of imperative, indicative and subjunctive present (rehúrto…) due to accentuation rules

Verb rehundir follows conjugation pattern of regular verbs in -ir except for alternation of "u" -> "ú" in some forms of imperative, indicative and subjunctive present (rehúndo…) due to accentuation rules

All derivatives of huir follow the conjugation pattern of verb huir except for having accent mark in several forms

Verb rehinchir follows conjugation pattern of regular verbs in -ir except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (rehíncho…) due to accentuation rules

Verb rehenchir follows conjugation pattern of verb henchir except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (rehíncho…) due to accentuation rules

Verb regoldar follows the conjugation pattern of regular verbs in -ar except for alternation in stem "o" -> "üe" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: regoldar / regüelda

Verbs like refreír conjugate like reír but have accentuated "o" in 3rd pers., sg. in indicative past simple due to accentuation rules

Verbs ending in -endar with diphthong follow the pattern of pensar (piensa / recomienda)

Verb raspahilar is defective verb which has two foms only (infinitive and gerund)

Verb raer has multiple conjugation irregularities

Verb querer and its derivatives have multiple conjugation irregularities

Verbs ending in -quebrar with diphthong follow the pattern of pensar (piensa / quiebra) : verb quebrar and its derivatives

Verb pudrir and its derivatives; there is also another acceptable written form of this verb - podrir

Verb puar follows the conjugation pattern of regular verbs in -ar but with alternation in stem "u" -> "ú" in 1st, 2nd, 3rd pers.sing. and 3rd pers.pl. in imperative, indicative and subjunctive present: puar / púa

Verbs prohibir and cohibir follow conjugation pattern of regular verbs in -ir except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (prohíbo…) due to accentuation rules

Verb probar and its derivatives follow the regular conjugation pattern of verbs in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present (probar / prueba)

All derivatives of ver follow this conjugation model and have accent mark in 2nd pers. sing. in imperative

Verbs ending in -erir follow the conjugation pattern of regular verbs in -ir except for alternation in stem "e" -> "ie" and "e" -> "i" in several forms

Several derivatives of decir follow this conjugation model having two variants of conjugation in indicative future and conditional tenses

Verb poner has multiple conjugation irregularities

Verb podrir and its derivatives; there is also another acceptable written form of this verb - pudrir

Verb poder and its derivatives have multiple conjugation irregularities

Verbs ending in -oblar follow the conjugation pattern of regular verbs in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: poblar / puebla

Verb placer and its derivatives follow conjugation pattern of parecer except for having variants in 3rd pers. sing. in indicative past simple

Verb perder follows this model and has alternation "e" -> "ie" in several forms: in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: perder / pierde

Verbs ending in -ensar with diphthong follow the conjugation pattern of regular verbs in -ar except for alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: pensar / piensa

Verbs ending in -edir follow the conjugation pattern of regular verbs ending in -ir except for alternation in stem "e" -> "i" in imperative, indicative present and subjunctive: pedir / pide

Verbs ending in -acer (ex. nacer, pacer), -ecer (ex. parecer), -ocer (ex. conocer) except for irregular hacer, satisfacer, placer, yacer, mecer, cocer; and verbs ending in -escer (ex. fosforescer) follow conjugation pattern of regular verbs ending in -er except for alternation "c" -> "zc" in 1st pers. sg. in indicative present, all persons of subjunctive present and 1st pers. pl., 3rd pers. in imperative

Verb oler follows the conjugation pattern of verbs in -oler but has an additional "h" before diphthong "ue": muele but huele

Verb oír and its derivatives have multiple conjugation irregularities

Verbs like obstar follow conjugation pattern of regular verbs in -ar but have infinitive, gerund, participle and 3rd person forms only

Impersonal verb following the conjugation model of sacar but in 3rd person only: neviscar, ventiscar

Verb nevar and its derivatives with diphthong follow the pattern of pensar (piensa / nieva)

Verbs ending in -egar follow the conjugation pattern of verb llegar except for alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: negar / niega

Verb mover and its derivatives follow the regular conjugation pattern of verbs in -er except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present (mover / mueve)

Verb mostrar and its derivatives follow the regular conjugation model of verbs ending in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers. sing. and 3rd pers. pl. in imperative, indicative and subjunctive present: mostrar / muestra

Verb morir and its derivatives follow the conjugation pattern of regular verbs in -ir except for alternation in stem "o" -> "ue" in several forms in imperative, indicative and subjunctive present, alternation in stem "o" -> "u" in several forms and gerund and irregularity in participle

Verb morder and its derivatives follow conjugation pattern of regular verbs ending in -er except for alternation "u" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: morder / muerde

Verb melar, melar and its derivatives with diphthong follow the pattern of pensar (piensa / miela)

Defective verbs like manir follow conjugation pattern of regular verbs ending in -ir but only the forms whose ending begins with -i are used

Verbs ending in -estar with diphthong follow the pattern of pensar (piensa / manifiesta / enhiesta)

Verbs maldecir and bendecir follow conjugation pattern of decir except for indicative future simple which is regular and two forms of participle

Verb lucir and its derivatives follow conjugation pattern of regular verbs ending in -ir except for alternation "c" -> "zc" in 1st pers. sg. in indicative present, all persons of subjunctive present and 1st pers. pl., 3rd pers. in imperative

Verbs ending in -gar follow conjugation pattern of regular verbs in -ar except for alternation "g" -> "gu" before "e" in 1st person of indicative past simple (llegué), all persons in subjunctive present (llegue, llegues…) and 1st pers. pl., 3rd pers. pl. of imperative (lleguemos, llegue, lleguen)

Verb jugar has a variation in stem u - ue in several forms: juego, juegue… Its derivatives follow regular conjugation model: conjugar / conjuga, subjugar / subjuga

Verb jamerdar follows the conjugation pattern of regular verbs ending in -ar except for alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: jamerdar / jamierda

Verb ir has multiple conjugation irregularities

Verbs ending in -ertir follow the conjugation pattern of regular verbs ending in -ir except for alternation in stem "e" -> "ie" and "e" -> "i" in several forms

Regular verbs ending in -ir

Verb infecir follows conjugation pattern of esparcir except for alternation of "e" -> "i" in imperative, indicative and subjunctive present: infecir / infizo

Verb huir follows the conjugation pattern of regular verbs in -ir except for addition of "y" before "a", "e", "o" in stem in 1st, 2nd, 3rd pers. sg. and 3rd pers. pl. in imperative, indicative present and subjunctive: huir / huye

Verb hervir and its derivatives follow the conjugation pattern of regular verbs in -ir except for alternation in stem "e" -> "ie" and "e" -> "i" in several forms

Verb hendir follows the conjugation pattern of regular verbs in -ir except for alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: hendir / hiende

Verbs ending in -enchir follow the conjugation pattern of regular verbs in -ir except for alternation in stem "e" -> "i" in imperative, indicative and subjunctive present: henchir / hinche

Verb heder follows the conjugation pattern of regular verbs in -er except for alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: heder / hiede

Verb hacer and its derivatives; verbs ending in -facer (ex. satisfacer)

Auxiliary verb haber. Also used as an impersonal verb in 3rd person singular of indicative present tense as "hay"

Monosyllabic verbs ending in -iar follow conjugation pattern of verb ampliar except for having no written accent in certain conjugation forms

Verbs ending in -ernar with diphtong follow the pattern of pensar (piensa / gobierna)

Verbs ending in -emir follow the conjugation pattern of regular verbs except for alternation in stem "e" -> "i" in imperative, indicative and subjunctive present: gemir / gime

Impersonal verb following the model actuar, but in 3rd person sing. only: garuar / garúa

Verbs ending in -orzar (except for acorzar, alcolzar, alforzar, escorzar, orzar that do not have vowel stem alternation) follow the regular conjugation pattern of verbs in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: forzar / fuerza

If the verb follar comes from "fuello", there is alternation "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present; in other meanings it follows conjugation pattern of regular verbs in -ar

Obsolete verb far conjugates like hacer

Verbs ending in-iar (except for verbs like ampliar and guiar) follow the conjugation pattern of regular verbs in -ar and also have variants with alternation in stem "i" -> "í" in 1st, 2nd, 3rd pers.sing. and 3rd pers.pl. in imperative, indicative and subjunctive present: expatriar / expatria / expatría

Verbs ending in-cuar (except for anticuar and apropincuar) follow the conjugation pattern of regular verbs in -ar and also have variants with alternation in stem "u" -> "ú" in 1st, 2nd, 3rd pers.sing. and 3rd pers.pl. in imperative, indicative and subjunctive present: evacuar / evacua / evacúa

Verb estregar follows the conjugation pattern of of verb llegar and also have variants with alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: estregar / estriego / estrego

Auxiliary verb estar has irregular conjugation

Verbs ending in -cir follow conjugation pattern of regular verbs in -ir except for alternation of "c" to "z" before "o" or "a" in 1st person of indicative present (esparzo), all persons in subjunctive present (esparza, esparzas…) and 1st pers. pl. and 3rd pers. sg. and pl. of imperative (esparza, esparzamos, esparzan)

Verb escribir and some derivatives follow the conjugation pattern of regular verbs in -ir except for irregular form in past participle

Verb errar follows the conjugation pattern of regular verbs in -ar and also have variants with addition of "y" before "e" in stem in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: errar / erro / yerro

Verb erguir has multiple conjugation irregularities

Verb enzainar follows the conjugation pattern of regular verbs in -ar and also have variants with alternation in stem "i" -> "í" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: enzainar / enzaino / enzaíno

Verbs envernar and invernar follow the conjugation pattern of regular verbs in -ar and also have variants with alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: envernar / envierno / enverno

Verb entortar follows the conjugation pattern of regular verbs in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: entortar / entuerta

Verbs ending in -aizar and -eizar (except for idoneizar, nucleizar) follow conjugation pattern of verb cazar except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (enraízo…) due to accentuation rules

Verb engrosar follows the conjugation pattern of regular verbs in -ar and also has variants with alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: engrosar / engroso /engrueso

Verbs ending in -gorar with diphthong follow the conjugation pattern of regular verbs in -ar except for alternation in stem "o" -> "üe" after "g" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: engorar / engüera

Verbs ending in -ontrar follow the conjugation pattern of regular verbs in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: encontrar / encuentro

Verbo impersonal encelajarse follows conjugation pattern of regular verbs in -ar but have infinitive, gerund, participle and 3rd person forms only

Verbs ending in -ezar with diphthong follow conjugation pattern of pensar except for alternation of "z" -> "c" before "e" in 1st person of indicative past simple (empecé), all persons in subjunctive present (empiece, empieces…) and 1st pers. pl. and 3rd pers. sg. and pl. of imperative (empiece, empecemos, empiecen)

Defective verb empecer follows conjugation pattern of parecer but have infinitive and 3rd person forms only

Verb embaular and its derivatives follow regular conjugation pattern of verbs in -ar except for alternation of "u" -> "ú" in some forms of imperative, indicative and subjunctive present (embaúlo…) due to accentuation rules

Defective verb embaír; only the forms whose ending begins with -i are used

Verbs ending in -egir follow conjugation pattern of verb dirigir except for alternation "e" -> "i" in some indicative, subjunctive, imperative forms and gerund

Verb dormir and its derivatives follow the conjugation pattern of regular verbs in -ir except for alternation in stem "o" -> "ue" in several forms in imperative, indicative and subjunctive present, alternation in stem "o" -> "u" in several forms and gerund

Verbs ending in -oler with diphtong "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: moler / muele

Verbs ending in -guir (except for erguir, seguir and its derivatives) follow this model: alternation "gu" -> "g" before "o" or "a" in 1st person of indicative present (distingo), all persons in subjunctive present (distinga, distingas…) and 1st pers. pl., 3rd pers. pl. of imperative (distingamos, distinga, distingan)

Verb cernir and its derivatives follow the conjugation pattern of regular verbs in -ir except for alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: cernir / cierne

Verbs ending in -gir follow this model: alternation "g" -> "j" before "o" or "a" in 1st person of indicative present (dirijo), all persons in subjunctive present (dirija, dirijas…) and 1st pers. pl., 3rd pers. pl. of imperative (dirijamos, dirija, dirijan)

All derivates of venir follow this conjugation model and have accent mark in 2nd pers. sing. in imperative

Verb desvaír has multiple conjugation irregularities

Verb desosar follows the conjugation pattern of verb desengrosar but has an additional "h" before diphthong "ue": desosar / deshuesa

Verb desmembrar follows the conjugation pattern of regular verbs in -ar and also have variants with alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: desmembrar / desmembro / desmiembro

Verb deslendrar follows the pattern of pensar (piensa / desliendra)

Verbs ending in -erbar with diphthong follow the pattern of pensar (piensa / deshierba) : verbe herbar and its derivatives

Verbs desengrosar follows the conjugation pattern of regular verbs in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: desengrosar / desengruesa

Verbs desencovar and encovar follow the conjugation pattern of regular verbs in -ar and also have variants with alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: desencovar / desencovo / desencuevo

Verbs ending in -pedrar with diphthong follow the pattern of pensar (piensa / desempiedra)

Verb desdar devivative of dar follows conjugation pattern of dar but has accent mark in several indicative, subjunctive and imperative forms

Some derivatives of escribir follow the conjugation pattern of escribir except for having two forms in past participle (form ending in -pto is used in Argentina, Paraguay and Uruguay)

Verbs ending in -inar with hiatus follow regular conjugation pattern of verbs in -ar except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (descafeína…) due to accentuation rules

Verbs desaforar and encorar follow conjugation pattern of regular verbs in -ar except for alternation "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: desaforar / desafuera

Verbs ending in -quir follow this model: alternation "qu" -> "c" before "o" or "a" in 1st person of indicative present (delinco), all persons in subjunctive present (delinca, delincas…) and 1st pers. pl., 3rd pers. pl. of imperative (delincamos, delinca, delincan)

Verb degollar follow the conjugation pattern of resollar except for alternation in stem "o" -> "üe" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: degollar / degüello

Verb decir and some of its derivatives: entredecir, interdecir, desdecir, redecir have multiple conjugation irregularities

Regular verbs ending in -er

Verb dar has multiple conjugation irregularities

Several verbs ending in -rir (abrir, cubrir and their derivatives except for desabrir) follow the regular conjugation pattern of verbs in -ir with one exception: their past participle ends in -ierto (instead of -ido): cubrir / cubierto, abrir / abierto

Verbs ending in -eer follow conjugation pattern of regular verbs ending in -er except for alternation "i" -> "y" in several indicative, subjunctive, imperative forms and "i" -> "í" in gerund

Verbes réguliers se terminant en -ir

Verb tener and its derivatives has multiple conjugation irregularities

Verb contar and its derivatives follow the regular conjugation pattern of verbs in -ar except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present (contar / cuenta)

Verb concernir follows conjugation pattern of discernir but have infinitive, gerund, participle and 3rd person forms only

Verbs ending in -ebir follow conjugation pattern of regular verbs ending in -ir except for alternation "e" -> "i" in some indicative, subjunctive, imperative forms and gerund

Verbs ending in -enzar with diphthong follow conjugation pattern of pensar except for alternation of "c" -> "z" before "e" in 1st person of indicative past simple (comencé), all persons in subjunctive present (comience, comiences…) and 1st pers. pl. and 3rd pers. sg. and pl. of imperative (comience, comencemos, comiencen)

Verbs ending in -olgar (except for resolgar) follow conjugation pattern of verb llegar except for alternation "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: colgar / cuelga

Verbs ending in -ger follow this model: alternation "g" -> "j" before "o" or "a" in 1st person of indicative present (cojo), all persons in subjunctive present (coja, cojas…) and 1st pers. pl., 3rd pers. pl. of imperative (cojamos, coja, cojan)

Verb cocer and its derivatives follow the conjugation pattern of vencer except for alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: cocer / cuece

Verbs ending in -ocar with diphthong follow conjugation pattern of verb sacar except for alternation "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: clocar / clueca

Verbs cimentar, emparentar, regimentar follow the conjugation pattern of regular verbs in -ar and also have variants with alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: cimentar / cimiento / cimento

Verb cerner and its derivatives follow the conjugation pattern of regular verbs in -er except for alternation in stem "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: cerner / cierne

Verbs ending in -zar with follow conjugation pattern of regular verbs in -ar except for alternation of "c" -> "z" before "e" in 1st person of indicative past simple (cacé), all persons in subjunctive present (cace, caces…) and 1st pers. pl. and 3rd pers. sg. and pl. of imperative (cace, cacemos, cacen)

Verb caer and its derivatives has multiple conjugation irregularities

Verb cabrahigar and its derivatives follow conjugation pattern of verb llegar except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (cabrahígo…) due to accentuation rules

Verb caber has multiple conjugation irregularities

Verbs which stem ends in "ñ" and "ll" absorb unstressed "i": bruñir / bruñó, mullir / mulló

Verb barahustar follows regular conjugation pattern of verbs in -ar except for alternation of "u" -> "ú" in some forms of imperative, indicative and subjunctive present (barahústo…) due to accentuation rules

Defective verb balbucir follows conjugation pattern of regular verbs in -ir but does not have 1st pers. sg. of indicative present, all persons of subjunctive present, these forms can be replaced by corresponding forms of balbucear

Verbs ending in -guar follow regular conjugation pattern of verbs in -ar except for the alternation in stem "u" -> "ü" in 3rd pers. sing., 1st and 3rd pers. pl. in imperative, in 1st pers. sing. indicative past simple and in all persons in subjunctive present : averiguar / averigüé

Verbs ending in -gonzar follow the conjugation pattern of verb cazar except for alternation in stem "o" -> "üe" after "g" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: avergonzar / avergüenza

Verb aupar follows regular conjugation pattern of verbs in -ar except for alternation of "u" -> "ú" in some forms of imperative, indicative and subjunctive present (aúpo…) due to accentuation rules

Verb aungar follows conjugation pattern of verb llegar except for alternation of "u" -> "ú" in some forms of imperative, indicative and subjunctive present (aúngo…) due to accentuation rules

Verb aunar follows regular conjugation pattern of verbs in -ar except for alternation of "u" -> "ú" in some forms of imperative, indicative and subjunctive present (aúno…) due to accentuation rules

Verbs aullar and maullar follow regular conjugation pattern of verbs in -ar except for alternation of "u" -> "ú" in some forms of imperative, indicative and subjunctive present (aúllo…) due to accentuation rules

Verbs ending in -esar with diphtong follow the pattern of pensar (piensa / atraviesa)

Verb traillar and its derivatives follow regular conjugation pattern of verbs in -ar except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (traíllo…) due to accentuation rules

Verb atañer follow conjugation pattern of tañer except for being used only in infinitive, gerund, participle and 3rd person

Verb asolar and its derrivatives follow the conjugation pattern of regular verbs in -ar and also have variants with alternation in stem "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: asolar / asolo / asuelo

Verb asir and its derivatives follow conjugation pattern of regular verbs in -ir except for addition of "g" in 1st pers.sg. in indicative present, all persons in subjunctive present and several forms of imperative

Verb argüir and its derivatives have multiple conjugation irregularities

Verbs ending in -etar with diphthong follow the pattern of pensar (piensa / aprieta): verb apretar and its derivatives

Verb aporcar and its derivatives follow conjugation pattern of verb sacar except for alternation "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: aporcar / apuerca

All derivates of poner follow this conjugation model and have accent mark in 2nd pers. sing. in imperative

Verb andar and its derivatives have multiple conjugation irregularities

Several verbs ending in -iar follow the regular conjugation model of verbs in -ar except for the variation in verb stem "i" -> "í " in 1st, 2nd, 3rd pers. sing. and 3rd pers. pl. in imperative, indicative and subjunctive present: ampliar / amplío

Regular verbs ending in -ar

Verb aislar and its derivatives follow regular conjugation pattern of verbs in -ar except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (aíslo…) due to accentuation rules

Verb airar and its derivatives follow regular conjugation pattern of verbs in -ar except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (aíro…) due to accentuation rules

Verb ahuchar follows regular conjugation pattern of verbs in -ar except for alternation of "u" -> "ú" in some forms of imperative, indicative and subjunctive present (ahúcho…) due to accentuation rules

Verb ahitar and its derivatives follow regular conjugation pattern of verbs in -ar except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (ahíto…) due to accentuation rules

Verb ahirmar follows regular conjugation pattern of verbs in -ar except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (ahírmo…) due to accentuation rules

Verb ahincar follows regular conjugation pattern of verb sacar except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (ahínco…) due to accentuation rules

Verb ahijar and its derivatives follow regular conjugation pattern of verbs in -ar except for alternation of "i" -> "í" in some forms of imperative, indicative and subjunctive present (ahíjo…) due to accentuation rules

If the verb aforar comes from "foro", it follows conjugation pattern of regular verbs in -ar but if it comes from "fuero", there is alternation "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present

Verb adquirir and its derivatives follow conjugation pattern of regular verbs in -ir except for alternation "i" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: adquirir / adquiere

Verb adestrar follows conjugation pattern of regular verbs in -ar except for alternation "e" -> "ie" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: adestrar / adiestra

Verbs ending in-uar (except for verbs in -cuar that also have regular conjugation forms, verbs that follow the conjugation pattern of averiguar and apropincuar that is regular) follow the conjugation pattern of regular verbs in -ar but have alternation in stem "u" -> "ú" in 1st, 2nd, 3rd pers.sing. and 3rd pers.pl. in imperative, indicative and subjunctive present: actuar / actúa

Verb acornar and its derivatives follow conjugation pattern of regular verbs in -ar except for alternation "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: acornar / acuerna

Verb acordar and its derivatives follow conjugation pattern of regular verbs in -ar except for alternation "o" -> "ue" in 1st, 2nd, 3rd pers.sg. and 3rd pers.pl. in imperative, indicative and subjunctive present: acordar / acuerda

Verbs ending in -ertar with diphthong follow the pattern of pensar (piensa / acierta)

These defective verbs follow conjugation pattern of parecer but have infinitive, gerund, participle and 3rd person forms only

Verbs ending in -eldar with diphthong following the model of pensar (piensa / abielda) : verb beldar and its derivatives

Defective verb abar follows conjugation pattern of regular verbs ending in -ar but it has infinitive and imperative forms only