would -used to

a) actions that we did regularly in the past, but that we don't do now.

Our family used to produce olive oil when I was young.

We used to live in New York when I was kid.

b) states that existed in the past, but that don't exist now.

I used to love eating out but now I prefer cooking at home.

She used to smoke but she gave up a few years ago.

Action verbs (run, eat, go, walk, think, argue, find, drink, dance, play, feel, etc.): Son verbos que hablan de acciones.

State verbs (be, understand, like, love, hate, know, sound, depend, remember, prefer, etc.): Son verbos que hablan más de estados y no de acciones. Estos verbos no se suelen poner en la forma continua.

I’m knowing. I know.

I’m not preferring. I don’t prefer.