used to / use to?

We learned that with the aux DID we must not conjugate the verb, so I didn't understand why the following sentence is right:

"Did she USED to work in a company?"

I guess, the correct must be:

"Did she USE to work in a company?"

I think, maybe in this case, USED TO is a idiom.

What's your opinion about that?

2 Answers

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  • Anonymous
    1 month ago
    Favorite Answer

    "used to " has no inflected forms and isn't used with other models.He used to get quite cross with Lily.

    What did they USED to call it?

    However, "used to" is used with the auxiliary verb "do".For example,.......

    They didn't used to mind what I did.

    Sometimes"not" is put between "used " and "to". .

    It used not to be taxable.

    By the way, " used to " is also used to imply that someone is acquainted with someone/something.

    He appears used to her unnatural behavior.

    Here, "used to " is used in simple present tense.  .

  • 1 month ago

    A lot of people do use "Didn't used to" or "Did she used to?" but they are mistaken, and you are right: it should not be conjugated.

    It's correct to say, "She didn't use to" or "Did she use to?"

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