1
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For finished actions that fall in the past, we use the past simple to talk about that.

2
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A human went to the moon in 1969.

3
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The action is finished.

4
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It's all over.

5
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It's fine.

6
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To use it in a sense, you need to think a bit.

7
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If the verb is regular, we have to add it to it.

8
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Like he jumped, he walked, he started and so on.

9
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And remember that he danced and stopped, stopped to make it negative.

10
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And for questions we use did, it didn't work, he didn't do it, we didn't see you here, and remember we did, forget about that in it did, one mark of this is enough, no need to repeat, for questions we move did, to the start of did, did you study this last year, yes you did, and for short answers we answer just with did, did I make myself clear, no I didn't, yes I did.