1. PAST HABITS: USED TO
Use used to to talk about past habits, situations or states:
We used to go out every night (habit)
We used to live in the city (situation)
We used to be city people (state)
*We can also use would/wouldn’t to talk about past habits, as long as we are talking about actions and not states or situations.

2. + We used to live in the city - She didn’t use to like the country
+ We used to live in the city - She didn’t use to like the country ? Did you use to go out every night? Yes/NO Yes, we did / No, we didn’t

3. Don’t use used to or would to talk about:
A single past action: I used to/would go to a great exhibition yesterday.
I went to a great exhibition yesterday.
How long an action lasted: I used to live in the city for three years.
I lived in the city for three years.
The number of times an action was repeated in total: We used to/would visit the museum at least a hundred times.
We visited the museum at least …

4. BE USED TO & GET USED TO
BE USED TO Use be used to to explain that someone is familiar with a situation or a routine: I’m used to staying in bed late.

5. GET USED TO BE USED TO & GET USED TO
Use get used to to explain that someone is in the process of becoming familiar with a situation:
I’m getting used to working early in the morning.

6. When you use used to as a verb, it is followed by the infinitive:
USED TO BE/GET USED TO
When you use used to as a verb, it is followed by the infinitive:
I used to work nights.
You can only use used to as a verb to talk about the past.
Use be/get used to with a noun or a verb+-ing.
I’m used to spicy food.
I’m used to eating spicy food.