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    • Join Date: Jul 2009
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    #1

    Difference

    Dear Sir,

    Can you kindly explain me the;

    Difference between did not, had not and have not

    Thanks

  1. engee30's Avatar
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    #2

    Smile Re: Difference

    Quote Originally Posted by rosh1984 View Post
    Dear Sir,

    Can you kindly explain me the;

    Difference between did not, had not and have not

    Thanks
    Those are all finite operators with not, used in negative sentences:
    did not (short form didn't) - used in the simple past with all persons, singular and plural
    had not (short for hadn't ) - used in the past perfect with all persons, singular and plural
    have not (short form haven't) - used in the present perfect with all persons except the third person singular (he, she, it).

    Look at the examples:
    She did her homework last night.
    vs
    She did not do her homework last night.

    I had sold my car two weeks before
    .
    vs
    I had not sold my car two weeks before.

    We have been to Paris twice/She has been to Italy twice
    .
    vs
    We have not been to Paris twice/She has not been to Italy twice.


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