ser

to be (essential/permanent quality)

haber

to have (to do something, auxiliary verb)

estar

to be (health, location, state)

tener

to have

hacer

to do, make

poder

to be able, can

decir

to say, tell

ir

to go

ver

to see

dar

to give

saber

to know (information)

querer

to want, love

llegar

to arrive, come, reach

pasar

to pass, to spend (time), to happen

deber

to owe, must, should, ought to

poner

to put, place, set

parecer

to seem, appear

quedar

to stay, remain

creer

to believe

hablar

to speak

llevar

to carry, bring

dejar

to leave, abandon, to let, allow

seguir

to follow, continue

encontrar

to find, encounter

llamar

to call, to name