ESPAÑOL DOS Stem-Changing Verbs In the Preterite
In the present tense… We call stem-changing verbs “boot verbs” because they stem-changing in ALL forms except for the nosotros and vosotros forms
Dormir (o-ue) in the present tense Duermo Duermes Duerme Dormimos Dormís Duermen
In the preterite tense… Stem-changing verbs only change in the 3 rd person singular and plural
SPECIAL NOTE: Just because certain verbs stem change in the present tense DOES NOT automatically make them stem change in the preterite tense.
Stem Changing Differences Verbs that stem change e-ie or e-i in present tense change e-i in the preterite tense Verbs that stem change o-ue in the present tense change o-u in the preterite tense
Endings Regular –IR preterite endings are used to conjugate these stem- changing preterite –IR verbs íí iste ió imos isteis ieron
E-I in preterite (E-I in present) Pedir Repetir Vestirse Servir Seguir Reirse Medir To ask for To repeat To dress oneself To serve To follow To laugh To measure, to compare
E-I in preterite (E-IE in present) Sentirse Divertirse Preferir Sugerir Mentir To feel To have fun To prefer To suggest To lie
O-U in preterite (O-UE in present) Dormir Morir To sleep To die
CLASS PRACTICE Tú _______________ tarde esta mañana. (dormir) Nosotros _______________ ayer al parque. (divertirse) Ellos le __________________ una ensalada el camerero. (pedir) Usted nos _______________ el almuerzo a nosotros. (servir)
INDIVIDUAL PRACTICE Ella _______________ el mes pasado. (morir) Los chicos __________ esta mañana. (vestirse) Yo __________ comer sólo. (preferir) Mis amigas me _______________ a la casa de Roberto para su fiesta. (seguir)