Verbs that change meaning in the preterite

conocer imperfect

to know/be familiar with people and places

conocer preterite

to meet for the first time

saber imperfect

to know facts or how to do something

saber preterite

to find out

tener imperfect

to have

tener preterite

to get or receive something

poder imperfect

to be able to, can

poder preterite

to manage to (pull it off), to finally do

querer imperfect

to wish, want (like or love)

no querer preterite

to refuse to do something

querer preterite

to try to do something but not succeed