8.1: Preterite of stem-changing verbs

Question 1

Remember that -__ and -__ stem-changing verbs have no stem change in the preterite. -__ stem-changing verbs, however, do have a stem change.

Answer 1

-ar; -er; -ir

Question 2

Stem-changing -ir verbs, in the preterite only, have a stem change in the _______-person singular and plural forms. The stem change consists of _______ or _______.

Answer 2

third; e:i ; o:u

Question 3

Conjugate servir in the present and preterite tenses:

yo

Answer 3

present preterite

sirvo serví

Question 4

Conjugate servir in the present and preterite tenses:

tu

Answer 4

present preterite

sirves serviste

Question 5

Conjugate servir in the present and preterite tenses:

usted

Answer 5

present preterite

sirve sirvió

Question 6

Conjugate servir in the present and preterite tenses:

él/ella

Answer 6

present preterite

sirve sirvió

Question 7

Conjugate servir in the present and preterite tenses:

nosotros/as

Answer 7

present preterite

servimos servimos

Question 8

Conjugate servir in the present and preterite tenses:

vosotros/as

Answer 8

present preterite

sirvís servisteis

Question 9

Conjugate servir in the present and preterite tenses:

ustedes

Answer 9

present preterite

sirven sirvieron

Question 10

Conjugate servir in the present and preterite tenses:

ellos/as

Answer 10

present preterite

sirven sirvieron

Question 11

Conjugate dormir in the present and preterite tenses:

yo

Answer 11

present preterite

duermo dormí

Question 12

Conjugate dormir in the present and preterite tenses:

tu

Answer 12

present preterite

duermes dormiste

Question 13

Conjugate dormir in the present and preterite tenses:

usted

Answer 13

present preterite

duerme durmió

Question 14

Conjugate dormir in the present and preterite tenses:

él/ella

Answer 14

present preterite

duerme durmió

Question 15

Conjugate dormir in the present and preterite tenses:

nosotros/as

Answer 15

present preterite

dormimos dormimos

Question 16

Conjugate dormir in the present and preterite tenses:

vosotros/as

Answer 16

present preterite

dormís dormisteis

Question 17

Conjugate dormir in the present and preterite tenses:

ustedes

Answer 17

present preterite

duermen durmieron

Question 18

Conjugate dormir in the present and preterite tenses:

ellos/as

Answer 18

present preterite

duermer durmieron

Question 19

Conjugate pedir in the present and preterite tenses:

yo

Answer 19

present preterite

pido pedí

Question 20

Conjugate pedir in the present and preterite tenses:

tu

Answer 20

present preterite

pides pediste

Question 21

Conjugate pedir in the present and preterite tenses:

usted

Answer 21

present preterite

pide pidió

Question 22

Conjugate pedir in the present and preterite tenses:

él/ella

Answer 22

present preterite

pide pidió

Question 23

Conjugate pedir in the present and preterite tenses:

nosotros/as

Answer 23

present preterite

pedimos pedimos

Question 24

Conjugate pedir in the present and preterite tenses:

vosotros/as

Answer 24

present preterite

pedís pedisteis

Question 25

Conjugate pedir in the present and preterite tenses: ustedes

Answer 25

present preterite | piden pidieron

Question 26

Conjugate pedir in the present and preterite tenses: ellos/as

Answer 26

present preterite | piden pidieron

Question 27

Conjugate morir in the present and preterite tenses: yo

Answer 27

present preterite | muero morí

Question 28

Conjugate morir in the present and preterite tenses: tu

Answer 28

present preterite | mueres moriste

Question 29

Conjugate morir in the present and preterite tenses: usted

Answer 29

present preterite | muere murió

Question 30

Conjugate morir in the present and preterite tenses: él/ella

Answer 30

present preterite | muere murió

Question 31

Conjugate morir in the present and preterite tenses: nosotros/as

Answer 31

present preterite | morimos morimos

Question 32

Conjugate morir in the present and preterite tenses: vosotros/as

Answer 32

present preterite | morís moristeis

Question 33

Conjugate morir in the present and preterite tenses: ustedes

Answer 33

present preterite | mueren murieron

Question 34

Conjugate morir in the present and preterite tenses: ellos/as

Answer 34

present preterite | mueren murieron

Question 35

Cambia cada infinitivo al pretérito. Yo __________ (servir, dormir, pedir, preferir, repetir, seguir).

Answer 35

serví, dormí, pedí, preferí, repetí, seguí

Question 36

Cambia cada infinitivo al pretérito. Usted __________ (morir, conseguir, pedir, sentirse, despedirse, vestirse).

Answer 36

murió, consiguió, pidió, se sintió, se despidió, vistió

Question 37

Cambia cada infinitivo al pretérito. Tú __________ (conseguir, servir, morir, pedir, dormir, repetir).

Answer 37

conseguiste, serviste, moriste, pediste, dormiste, repetiste

Question 38

Cambia cada infinitivo al pretérito. Ellas __________ (repetir, dormir, seguir, preferir, morir, servir).

Answer 38

repitieron, durmieron, siguieron, prefirieron, murieron, sirvieron

Question 39

Cambia cada infinitivo al pretérito. Nosotros __________ (seguir, preferir, servir, vestirse, despedirse, dormirse).

Answer 39

seguimos, preferimos, servimos, nos vestimos, nos despedimos, dormimos

Question 40

Cambia cada infinitivo al pretérito. Ustedes __________ (sentirse, vestirse, conseguir, pedir, despedirse, dormirse).

Answer 40

se sintieron, se vistieron, se consiguieron, pidieron, se despidieron, se durmieron

Question 41

Cambia cada infinitivo al pretérito. Él __________ (dormir, morir, preferir, repetir, seguir, pedir).

Answer 41

durmió, murió, prefirió, repitió, siguió, pidió