Stem changer verbs (boot verbs)

pensar

to think

preferir

to prefer

cerrar

to close

empezar

to begin

entender

to understand

merendar

to have a snack

perder

to lose

querer

to want; to love

comenzar

to start

poder

to be able, can

almorzar

to have lunch

costar

to cost

dormir

to sleep

encontrar

to find

probar

to taste, to try

volver

to return

servir

to serve

competir

to compete

pedir

to ask for, to order

medir

to measure

repetir

to repeat

vestir

to get dressed; to wear

jugar

to play a sport