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    • Member Info
      • Native Language:
      • Turkish
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      • Turkey
      • Current Location:
      • Turkey

    • Join Date: Nov 2011
    • Posts: 608
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    #1

    did you know

    Hi,

    http://www.did-you-knows.com/?page=7

    -Did you know frogs can't swallow with their eyes open?
    -Did you know a crocodile can't move its tongue?
    -Did you know an average person will spend 25 years asleep?

    My suggestions:

    -Did you know frogs couldn't swallow with their eyes open?
    -Did you know a crocodile couldn't move its tongue?
    -Did you know an average person would spend 25 years asleep?

    I have seen these sentences in 'did you know...questions', and I would like to ask why they use 'can't / will' instead of 'could't / would' because the main sentence begins with a past tense.

    Thanks.
    Last edited by aysaa; 22-Jun-2013 at 23:28. Reason: adding question marks.

    • Member Info
      • Native Language:
      • English
      • Home Country:
      • England
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      • England

    • Join Date: Jun 2010
    • Posts: 21,508
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    #2

    Re: did you know

    They are stating facts, not conjectures. The questions could also begin 'Do you know?'

    All the 'Did you know...' questions should end in question marks. Please edit your post accordingly. (You have done that. Thank you.)
    Last edited by Rover_KE; 23-Jun-2013 at 08:18.

  1. anhnha's Avatar
    • Member Info
      • Native Language:
      • Vietnamese
      • Home Country:
      • Vietnam
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      • Vietnam

    • Join Date: May 2012
    • Posts: 532
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    #3

    Re: did you know

    They are stating facts, not conjectures. The questions could also begin 'Do you know?'
    Is this better than "Did you know"?
    And can I use the following?
    Have you known...?

    • Member Info
      • Native Language:
      • English
      • Home Country:
      • England
      • Current Location:
      • England

    • Join Date: Jun 2010
    • Posts: 21,508
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    #4

    Re: did you know

    No. 'Did you know' is best.

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