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
14 verbs follow this model. Below an extract:
To see other models, refer to Model Table
Based on the ending, you can identify features that different verbs have in common. Click on the verbs above to see their conjugation tables and explore their conjugation patterns.