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Whatchadoin Posted 14 years ago
Grammar

Have

Have you gone mad?
Did you go mad?

Why have you done that?
Why did you do that?

What have I done?
What did I do?

What are the differences between these?
  

Top answer

Have + past participle: Present perfect tense. The coupled examples are simple past tense. htm

  • Have + past participle: Present perfect tense.
  • The coupled examples are simple past tense.
  • htm
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2 Answers
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Have + past participle: Present perfect tense.

The coupled examples are simple past tense.

Information on the tenses is here: http://www.EnglishForward.com/content/lessons/verb-tenses.htm
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It should be pointed out, all your examples are possible. There are subtle and unspoken rules which are not bound by conventional grammar. Sometimes, it is dictated by situation in which it is spoken. So, there really a solid answer to your question.

If you pour a gallon of liquid detergent into a bath tub and turn on the water full blast, then jump in, this is what your mom will probabl

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