Model: graben
Auxiliary: haben
Other forms: graben/sich graben
Irregular conjugation for the verb "graben" and its compounds: stem vowel mutation (umlaut) in singular form of the second and third person in Present tense ("du gräbst"). There is a vowel change in the stem of Present tense ("ich grabe"), the stem of Preterite ("ich grub") and the stem of Past Participle ("gegraben").
Präsens
Präteritum
Futur I
Perfekt
Plusquamperfekt
Futur II