Present tense stem-changers

Stem-changing verbs are so named because of a vowel that changes in the stem in certain

forms.

This change occurs when that vowel is stressed. That happens

in all but the nosotros and vosotros forms.

Stem-changing verbs take regular -ar, -er, or -ir endings.

pensar, to think, exemplifies e>ie stem-changers.

pienso

piensas

piensa

pensamos (not stressed)

piensan

Conjugate some e>ie verbs. Start with comenzar, to begin.

comienzo

comienzas

comienza

comenzamos

comienzan

Conjugate empezar, to begin.

empiezo

empiezas

empieza

empezamos

empiezan

Conjugate querer, to want.

quiero

quieres

quiere

queremos

quieren

Conjugate entender, to understand.

entiendo

entiendes

entiende

entendemos

entienden

tener, to have, and venir, to come have irregular yo forms.

tener

tengo

tienes

tiene

tenemos

tienen

venir, to come, is conjugated like tener.

vengo

vienes

viene

venimos

vienen

volar, to fly, is typical of the verbs that change o>ue.

vuelo

vuelas

vuela

volamos

vuelan

Conjugate volver, to return.

vuelvo

vuelves

vuelve

volvemos

vuelven

Conjugate dormir, to sleep.

duermo

duermes

duerme

dormimos

duermen

jugar, to play, changes u>ue. Conjugate it.

juego

juegas

juega

jugamos

juegan

Some -ir verbs, like pedir, to ask for, change e> i.

pido

pides

pide

pedimos

piden

Conjugate servir, to serve.

sirvo

sirves

sirve

servimos

sirven

Conjugate repetir, to repeat.

repito

repites

repite

repetimos

repiten

Conjugate seguir, to continue or to follow.

sigo

sigues

sigue

seguimos

siguen

decir, to say, has an irregular i, has an irregular yo form.

digo

dices

dice

decimos

dicen

Happy conjugating!

FIN