Used to show what has been done so far in the past, is in the habit of providing information without emotion or feeling insert. Used to describe the activities that you've done in the past, but now may not be done. -I used to play the violin last year. (last year I was playing the violin, but now I'm not playing.) - They used to go to the park together. (Once they've been to the Park together. But now they don't have to.) - She used to work as an accountant. (Before this, she worked as an accountant, but now she did not perform.)* Mind * used to + Infinitive Without "to" V.1.The principle of a sentence denied. Subject + did not (didn't) + use + to + V.1. - He didn't use to eat strange food.
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