span verb chagers pret vs imperfecto

Conocer (past)

Conocí means 'I met', while conocía means 'I knew'.

Saber (past)

Supe means 'I found out', while sabía means 'I knew'.

Querer (past)

Quise means 'I tried', while quería means 'I wanted'.

No querer (past)

No quise means 'I refused', while no quería means 'I didn’t want'.

Poder (past)

Pude means 'I managed to', while podía means 'I was able to'.

No poder (past)

No pude means 'I couldn’t (and didn’t)', while no podía means 'I couldn’t (but may have tried)'.

Tener (past)

Tuve means 'I got/received', while tenía means 'I had'.

Tener que (past)

Tuve que means 'I had to (and did)', while tenía que means 'I had to (but unsure if I did)'.

Haber (past)

Hubo means 'There was (an event)', while había means 'There was/were (description)'.