2

2.1
Preterite of stem-changing verbs

estructura

As you learned in Senderos 1, Lección

6, -ar and -er stem-changing verbs have no stem

change in the preterite. -Ir stem-changing verbs,

however, do have a stem change. Study the

following chart and observe where the stem

changes occur.

2.1-1

© by Vista Higher Learning, Inc. All rights reserved.

Preterite of stem-changing verbs

Please take notes! 📝🗣️

2

2.1
Preterite of stem-changing verbs

2.1-2

© by Vista Higher Learning, Inc. All rights reserved.

servir (to serve)

dormir (to sleep)

yo

serví

dormí

tú

serviste

dormiste

Ud./él/ella

sirvió

durmió

nosotros/as

servimos

dormimos

vosotros/as

servisteis

dormisteis

Uds./ellos/ellas

sirvieron

durmieron

Preterite of –ir stem-changing verbs

PLURAL
FORMS

SINGULAR

FORMS

Preterite of stem-changing verbs

Please take notes! 📝🗣️

2

2.1
Preterite of stem-changing verbs
estructuraestructura

Stem-changing -ir verbs, in the preterite only,

have a stem change in the third-person singular

and plural forms. The stem change consists of

either e to i or o to u.

2.1-3

© by Vista Higher Learning, Inc. All rights reserved.

(e → i) pedir: pidió, pidieron

(o → u) morir (to die): murió, murieron

Preterite of stem-changing verbs

2

2.1
Preterite of stem-changing verbs
estructuraestructura

2.1-4

© by Vista Higher Learning, Inc. All rights reserved.

Preterite of stem-changing verbs

2

2.1
Preterite of stem-changing verbs

2.1-5

© by Vista Higher Learning, Inc. All rights reserved.

Cambia cada infinitivo al pretérito.

1. Yo _________________ serví, dormí, pedí... . (servir, dormir, pedir, preferir,

repetir, seguir)

2. Usted _________________ (morir, conseguir, pedir, sentirse, servir, vestirse)
3. Tú _________________ (conseguir, servir, morir, pedir, dormir, repetir)
4. Ellas _________________ (repetir, dormir, seguir, preferir, morir, servir)
5. Nosotros _________________ (seguir, preferir, servir, vestirse, pedir, dormirse)
6. Ustedes _________________ (sentirse, vestirse, conseguir, pedir, repetir, dormirse)
7. Él _________________ (dormir, morir, preferir, repetir, seguir, pedir)

¡INTÉNTALO!

serví, dormí, pedí...

Preterite of stem-changing verbs