Spanish Grammar Test: Vowel-Changing Verbs

Past Tense of Vowel -Changing -IR Verbs — (1)

LAUNCH QUIZ

Useful Grammar

All of the verbs of the third conjugation (IR Verbs) which undergo a change in the present tense also have one slight irregularity in the past tense. They change the e of their stem to i or the o of their stem to u in the third person, singular and plural, of the past tense. The following conjugations of sentir and dormir are typical; that is, sentir is typical of those verbs changing e to i in the third person singular and plural of the past tense; dormir is typical of those verbs changing o to u.