e:ie stem changing verbos

acertar

to guess, get right

encender

to light, kindle

advertir

to advise, warn

entender

to understand

cerrar

to close, shut

fregar

to scrub, wash dishes

comenzar

to begin (more formal)

hervir

to boil

confesar

to confess

mentir

to lie

consentir

to consent

negar

to deny

convertir

to convert

pensar (en)

to think about

defender

to defend

perder

to lose

empezar

to begin

preferir

to prefer