subject + used to + base verbUse this for past habits or states that are finished now. After used to, the main verb stays in the base form.
Used to talks about past habits or states that were true before but are not true now. Use used to in affirmatives, but use after did/didn't.
subject + used to + base verbUse this for past habits or states that are finished now. After used to, the main verb stays in the base form.
subject + did not + use to + base verbAfter did not, write use, not used. The main verb also stays in the base form.
Did + subject + use to + base verb + ?Put Did first, then the subject. After Did, write use, not used.
She used to live in Boston.
This describes an old situation that is different now.
Repeated actions in an earlier period: Tom used to run every morning. Now he drives to work.
Past homes, jobs, feelings, or preferences that changed: Anna used to live in Chicago, but now she lives in Seattle.
Use it when you compare then and now: I used to eat late, but now I cook at home.
Used to also works with states: Maria used to be shy. We use it for old situations that changed.
Used to points to something in the past that is finished or no longer true now.
USE_FOR_PAST_HABITSw5Use used to when Maria, Tom, or other people did something regularly in the past, but not now. It often contrasts past life with present life.
USE_FOR_PAST_STATESw5Use used to with old situations, jobs, homes, likes, or beliefs that were true before but are different now. It often gives background about an earlier period.
AFFIRMATIVE_USED_TOw5In affirmative sentences, use used to before the base verb: Anna used to live here. The main verb does not change form after used to.
NEGATIVE_DIDNT_USE_TOw5Use didn't use to for past habits or states that were not true before. After did, use stays in the base spelling and the main verb also stays in base form.
QUESTIONS_DID_USE_TOw5Start the question with Did, then subject, then use to and the base verb. Use does not appear here because the time is already past.
PAST_ONLY_MARKERSw3Words and phrases like when I was a child, years ago, or in high school often support used to. They place the situation in an earlier time.