GC 20 : Stem-Changing Verbs Remember that there are certain verbs which change their spelling when conjugated. These are stem- changing verbs. You can tell a stem-changing verb on the vocabulary list by the extra letters in parentheses, which tell how the vowel in the stem will change. e→ieo→uee→iu→ue quererjugar empezar entender merendar tener (-go) almorzar dormir volver
yo tú usted él ella nosotros nosotras ustedes ellos ellas duermo duermes duerme dormimos duermen dormir = to sleep *Remember: The nosotros form never stem-changes.