Although used to and be used to look very similar, they have very different meanings and uses. Let’s take a look at how we use them in conversation.
Used to + verb means that something was true before, but it is not true now. Because we are talking about the past, we use the past tense form used to. For example:
◆ I used to live in America, but now I live in Japan.
◆ He used to like spicy food, but now he doesn’t eat it.
◆ I used to work at that company.
We can also use use to in statements using didn't and questions using did/didn't. In these sentences, we need to use the present tense form use to.
◆ She didn’t use to exercise, but now she goes to the gym every day.
◆ I didn’t use to drink coffee, but now I have a cup every morning.
◆ Did you use to study Japanese when you lived in Canada?
◆ Didn’t she use to have a blue car?
Be used to + noun / gerund means that something is normal or usual. For example:
◆ My job is very busy, but I am used to the schedule. (= The schedule is normal for me)
◆ I have been living in Tokyo for a long time, so I am used to taking the train everywhere. (= Taking the train is normal for me)