Descubre 1, Lección 9: Grammar 9.2 (Vbs that change meaning in the preterit)

quise

I tried to do sth (at a specific moment)

no quise

I refused to do sth (at a specific moment)

conocí

I met (sb for the first time)

pude

I managed (to do sth); I succeeded (in doing sth)

no pude

I could not do sth (tried and failed)

supe

I found out

quisiste

You tried to do sth (at a specific moment)

no quisiste

You refused to do sth (at a specific moment)

conociste

You met (sb for the first time)

pudiste

You managed (to do sth); You succeeded (in doing sth)

no pudiste

You could not do sth (tried and failed)

supiste

You found out

quiso

He/she/you (form.) tried to do sth (at a specific moment)

no quiso

He/she/you (form.) refused to do sth (at a specific moment)

conoció

He/she/you (form.) met (sb for the first time)

pudo

He/she/you (form.) managed (to do sth); He/she/you (form.) succeeded (in doing sth)

no pudo

He/she/you (form.) could not do sth (tried and failed)

supo

He/she/you (form.) found out

quisimos

We tried to do sth (at a specific moment)

no quisimos

We refused to do sth (at a specific moment)

conocimos

We met (sb for the first time)

pudimos

We managed (to do sth); We succeeded (in doing sth)

no pudimos

We could not do sth (tried and failed)

supimos

We found out

quisieron

They/you (plural) tried to do sth (at a specific moment)

no quisieron

They/you (plural) refused to do sth (at a specific moment)

conocieron

They/you (plural) met (sb for the first time)

pudieron

They/you (plural) managed (to do sth); They/you (plural) succeeded (in doing sth)

no pudieron

They/you (plural) could not do sth (tried and failed)

supieron

They/you (plural) found out