Practicing the Verb Tenses: Stem-Changing Verbs (1)

Practice Going From One Tense to Another
If necessary, click to see how "core" verbs perder, preferir and servir are conjugated. Then, in each cell below, type in the conjugated forms in the indicated tenses, using verbs and subjects given. Use the Character Menu at bottom of screen for accents. Click Check to confirm your answers. Repeat if necessary, then click Next Exercise to practice some more stem-changing verbs.
Present
Preterite
Imperfect
Future
pensar, yo
entender,
sentir, tú y yo
repetir, yo
preferir, ellas