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Used to do

Do not confuse used to do with with the expression be used to. They have different meanings.

We use used to do to talk about the past. It is not a tense but it is like a tense. It is a special expression. We use the expression used to do for the past only.

Structure of Used to do

The structure is:

	subject	auxiliary did	not	main verb use	infinitive
+	I			used	to do.
-	I	did	not	use	to do.
?	Did	you		use	to do?

Used or use?

when there is did in the sentence, we say use to (without d)
when there is no did in the sentence, we say used to (with d)

Use of Used to do

We use the used to do expression to talk about:

an activity that we did regularly in the past (like a habit)
a situation that was true in the past

I used to smoke.
//////
past	present	future

Look at these examples.

the past	the present
She used to work in a shop.	Now she works in a bank.
He used to watch a lot of TV.	Now he doesn't watch much TV.
They used to be married.	Now they are divorced.
There used to be a cinema here.	Now there is a supermarket here.
I didn't use to go swimming.	Now I go swimming.
Did you use to smoke?

Be used to »

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