Stem changing in the preterite is easier than it was in the present tense. The only forms with the stem change are the third person forms. Take a look at some examples in the conjugator.
Do stem changes happen in the preterite?
-ar and -er verbs that change their stem in the present tense do not change in the preterite. They are conjugated just like other regular preterite verbs.
What verbs get a stem change?
What are "Stem-Changing Verbs"?
- -ar and -er verbs with e→ie changes (model)
- -ar and -er verbs with o→ue changes (model)
- -ir verbs with e→ie and e→i changes (model)
- -ir verbs with e→i changes (model)
- -ir verbs with o→ue and o→u changes (model)
