Irregular yo (-go) (-zco) (-jo) (-yo) (-zo)

hacer

to do (-go)

poner

to put (-go)

salir

to go out (-go)

caer

to fall (-go)

traer

to bring (-go)

conocer

to know people / be familiar (-zco)

desaparecer

to disappear (-zco)

merecer

to deserve (-zco)

obedecer

to obey (-zco)

ofrecer

to offer (-zco)

parecer

to seem, appear (-zco)

pertenecer

to belong (-zco)

reconocer

to recognize (-zco)

conducir

to drive (-zco)

producir

to produce (-zco)

traducir

to translate (-zco)

coger

to catch, pick, seize (-jo)

escoger/elegir

to choose (-jo)

proteger

to protect (-jo)

recoger

to pick up (-jo)

dirigir

to direct, manage (-jo)

exigir

to demand (-jo)

saber

to know facts / how to (no pattern)

ver

to see

corregir

to correct (-jo)

distinguir

to distinguish (-go)

conseguir

to obtain (-go)

extinguir

to extinguish (-go)

perseguir

to pursue (-go)

seguir

to follow (-go)

convencer

to convince (-zo)

ejercer

to exercise as in rights (-zo)

esparcir

to spread/scatter (-zo)

vencer

to defeat (-zo)

construir

to construct (-yo)

atribuir

to attribute (-yo)

contribuir

to contribute (-yo)

distribuir

to distribute (-yo)

incluir

to include (-yo)

concluir

to conclude (-yo)

destruir

to destroy (-yo)

influir

to influence (-yo)