Stem-Changing Verbs (mostly boot, but some others too!)

querer (e-ie)

to want

cerrar (e-ie)

to close (to lock)

empezar (e-ie)

to begin

entender (e-ie)

to understand

pensar (e-ie)

to think

preferir (e-ie)

to prefer

encontrar (o-ue)

to find

costar (o-ue)

to cost

almorzar (o-ue)

to (have) lunch

dormir (o-ue)

to sleep

poder (o-ue)

to be able to

volver (o-ue)

to return

pedir (e-i)

to ask (permission); to ask for

servir (e-i)

to serve

dar (*yo form irregularity)

to give

venir (yo-go, e-ie low cut)

to come

poner (yo-go)

to put/place/set

saber (yo form irregularity)

to know facts/information/skills

conocer (yo form irregularity)

to be familiar with

salir (yo-go)

to leave

traer (yo irregularity)

to bring

decir (yo-go)

to tell

ver (yo form irregularity)

to see