stem words

querer- to want

quier

cerrar - to close

cierr

empezar - to begin

empiez

preferir - to prefer

prefier

entender - to understand

entiend

jugar - to play

jueg

poder - to be able to

pued

encontrar - to find

encuentr

costar - to cost

cuest

volver - to return

vuelv

almorzar - to eat lunch

almuerz

dormir - to sleep

duerm

Pensar - to think

piens