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    #1

    present perfect

    This is from my English book.

    [M:Nothing that will relieve your symtoms like this drug. Why don't you-you could take two capsules three or four hours before your test. That way, the drug still working, but drowsiness has mostly worn off when you take your test.]

    drowsiness has mostly worn off ~~.

    I don't understand why the present perfect is used in this sentence.
    Can i just put the future form "will or would" in it instead?

  1. dodonaomik's Avatar
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    #2

    Re: present perfect

    Quote Originally Posted by Flyby View Post
    That way, the drug still working, but drowsiness has mostly worn off when you take your test.]

    hehe~~~,Busan is a very famous port in Korea!
    when you take your test ,I think,is Simple Present Tense(here, it is not necessary to use Simple Future Tense),so

    drowsiness has mostly worn off(the present perfect ) is very right


    Can you understand the above picture(from Chinese website) about Simple Present Tense?
    Last edited by dodonaomik; 02-Jul-2008 at 15:24.

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    #3

    Exclamation Re: present perfect

    Quote Originally Posted by Flyby View Post
    This is from my English book.

    [M:Nothing that will relieve your symtoms like this drug. Why don't you-you could take two capsules three or four hours before your test. That way, the drug still working, but drowsiness has mostly worn off when you take your test.]

    drowsiness has mostly worn off ~~.

    I don't understand why the present perfect is used in this sentence.
    Can i just put the future form "will or would" in it instead?
    Acually this is a case of proper application of Present Perfect which can be understood as:Present perfect: used to express an event that has just finished, and to describe an event which, although happened in the past, has effects that continue into the present. So here use of future form will be incorrect.

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    #4

    Re: present perfect

    Quote Originally Posted by Flyby View Post
    This is from my English book.

    [M:Nothing that will relieve your symtoms like this drug. Why don't you-you could take two capsules three or four hours before your test. That way, the drug still working, but drowsiness has mostly worn off when you take your test.]

    drowsiness has mostly worn off ~~.

    I don't understand why the present perfect is used in this sentence.
    Can i just put the future form "will or would" in it instead?
    1...Omit the "that" after "Nothing". 'Nothing will relieve....' is correct.

    2...You are correct. You should use "will", as you are talking about the future.
    That way the drug will still be working, but the drowsiness will have mostly worn off when you take your test.

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    #5

    Exclamation Re: present perfect

    Quote Originally Posted by 2006 View Post
    1...Omit the "that" after "Nothing". 'Nothing will relieve....' is correct.

    2...You are correct. You should use "will", as you are talking about the future.
    That way the drug will still be working, but the drowsiness will have mostly worn off when you take your test.
    Hi 2006! The modifications are ok and gramatically correct. But if we accept that the Simple Present is used to make statements about the present time, in the modified statement "the drowsiness will have mostly worn off when you take your test." what do you think of the combination of future perfect with present simple?

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    #6

    Re: present perfect

    Quote Originally Posted by Flyby View Post
    This is from my English book.

    [M:Nothing that will relieve your symtoms like this drug. Why don't you-you could take two capsules three or four hours before your test. That way, the drug still working, but drowsiness has mostly worn off when you take your test.]

    drowsiness has mostly worn off ~~.

    I don't understand why the present perfect is used in this sentence.
    Can i just put the future form "will or would" in it instead?
    I would say this way

    Nothing relieve your symptoms like this drug.
    Take two capsules three or four hours before your test.
    This way the drug would still work on, but drowsiness has mostly to wear off during the test.

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    #7

    Re: present perfect

    Quote Originally Posted by Manas Ranjan Mallick View Post
    Hi 2006! The modifications are ok and gramatically correct. But if we accept that the Simple Present is used to make statements about the present time, in the modified statement "the drowsiness will have mostly worn off when you take your test." what do you think of the combination of future perfect with present simple?
    I am not sure if I understand your question correctly, but there is no problem with mixing tenses appropriately.

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