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Anonymous Posted 17 years ago
Grammar

In and for - Present Perfect?!

Hello to everyone!

Recently, I have come across to the following concerning Present Perfect Tense. It is about the use of "for" in Present Perfect and I'm really confused. It gets about the following:
"for" is used to state periods of times only in positive sentences, in negatives we use "in"

e.g. I have been married for 20 years.
but I haven't seen you in ages.

I'm totally confused. Is some truth in that?
  

Top answer

No, although I suppose it is possible in some scenarios. Here, 'in' is an alternative: I have danced for two hours now. I haven't danced for two hours now.

  • No, although I suppose it is possible in some scenarios.
  • Here, 'in' is an alternative: I have danced for two hours now.
  • I haven't danced for two hours now.
  • I haven't danced in two hours now.
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1 Answers
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No, although I suppose it is possible in some scenarios. Here, 'in' is an alternative:

I have danced for two hours now.
I haven't danced for two hours now.
I haven't danced in two hours now.

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