Capitulo Ocho - Gramatica Dos

Question 1

The only kind of present stem changing verb that changes its stem in the preterite is:

Answer 1

Verbs ending in -ir.

Present-tense stem changing verbs ending in -ar or -er do not change their stems in the preterite.

Question 2

Which forms do present tense -ir stem changing verbs experience the stem change in the preterite?

Answer 2

Third person singular and third person plural.

Question 3

Verbs that change from e -> ie in the present tense change:

Answer 3

e -> i in the preterite.

preferir:

preferí
preferiste
prefirió *

preferimos
preferisteis
prefirieron *

Question 4

Verbs that change from e -> i in the present tense change:

Answer 4

also change e -> i in the preterite.

pedir:

pedí
pediste
pidió *

pedimos
pedisteis
pidieron *

Question 5

Verbs that change from o > ue in the present tense change:

Answer 5

o -> u in the preterite.

dormir:

dormí
dormiste
durmió *

dormimos
dormisteis
durmieron *