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Affirmative Negative
Interrogative
I used to smoke I didn't use to smoke
Did you use to smoke?
Used to is a modal verb expressing frequent or
continuous action in the past.
* It refers to past
habits and states that do not exist today,
something that you did regularly in the past but no longer do today.
* It exists only in the past
Examples of use:
- Tom used to drink coffee. Now he prefers
tea.
- Julie used to fly from Paris to London.
Now she takes the Eurostar.
- I used to drive to work. Now I take the underground.
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