Stem-changing verbs
SPN 8
Sports and Leisure Unit
What is a stem-changing verb?
A stem-changing verb is considered
irregular, however the only part of the verb
that is irregular is the stem.
A stem-changing verb still uses regular AR, -ER, or –IR verb endings.
All forms are irregular except for the
nosotros/nosotras form!
Stem-changing verbs’ “extra” rule
Since you already know your –AR, -ER,
and –IR verb endings, the only things
you’ll need to memorize is:
 which verbs are stem-changing
 what their stem-change rule is
Stem-change Rules
The following are types of stem-change
rules:
 o  ue
 e  ie
 u  ue
Let’s get started…
We will see lots of stem-changing verbs,
especially in the Sports and Leisure unit.
We’ll start with:
 JUGAR
 PODER
 DORMIR
 PREFERIR
 QUERER
The first 5
What do you think the stem-change rule is
for each of these verbs?
 JUGAR = jueg PODER = pued DORMIR = duerm PREFERIR = prefier QUERER = quier-
It’s T-chart time
Create T-charts for each stem-changing
verbs…
 JUGAR
 PODER
 DORMIR
 PREFERIR
 QUERER
JUGAR = To play
Yo
juego
Tú
juegas
Él/Ella/Ud.
Nosotros(as)
Ellos/Ellas/Uds.
juega
jugamos
juegan
PODER = To be able to
Yo
puedo
Tú
puedes
Él/Ella/Ud.
Nosotros(as)
Ellos/Ellas/Uds.
puede
podemos
pueden
DORMIR = To sleep
Yo
duermo
Tú
duermes
Él/Ella/Ud.
Nosotros(as)
Ellos/Ellas/Uds.
duerme
dormimos
duermen
PREFERIR = To prefer
Yo
prefiero
Tú
prefieres
Él/Ella/Ud.
Nosotros(as)
Ellos/Ellas/Uds.
prefiere
preferimos
prefieren
QUERER = To want
Yo
quiero
Tú
quieres
Él/Ella/Ud.
Nosotros(as)
Ellos/Ellas/Uds.
quiere
queremos
quieren
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Stem-changing verbs` “extra” rule