FORM → USED TO + INFINITIVE OF THE VERB (Negative: DIDN'T USE TO + INFINITIVE / Interrogative: DID you USE TO + INFINITIVE?)

We used to go to the beach every day

USE → ♦ Habits in the past

"Used to" expresses the idea that something was an old habit in the past. It indicates that something was often repeated in the past, but it is not usually done now.

Stella used to eat meat, but now she is a vegetarian
He used to cycle to school

♦ Past facts and generalizations

"Used to" can also be used to talk about past facts or generalizations which are no longer true.

Joss used to be the best student in class, but now Georgina is the best

IMPORTANT →   "BE USED TO" AND "GET USED" ARE DIFFERENT FROM "USED TO"

'Used to do' is different from 'to be used to doing' and 'to get used to doing'

We use 'to be used to doing' to say that something is normal, not unusual. (Estar acostumbrado a...)

I'm used to living on my own. I've done it for quite a long time.
Hans has lived in England for over a year so he is used to driving on the left now.
They've always lived in hot countries so they aren't used to the cold weather here.

We use 'to get used to doing' to talk about the process of something becoming normal for us. (Acostumbrarse a...)

I didn't understand the accent when I first moved here but I quickly got used to it.
She has started working nights and is still getting used to sleeping during the day.
I have always lived in the country but now I'm beginning to get used to living in the city.