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  1. Unregistered

    how did you know / how do you know ?

    hi all,
    My question is as the title.
    What are the differences between ''how did you know '' and '' how do you know''??
    Is there a different meaning for each phrase ?

  2. Barb_D's Avatar
    • Member Info
      • Native Language:
      • American English
      • Home Country:
      • United States
      • Current Location:
      • United States

    • Join Date: Mar 2007
    • Posts: 19,218

    Re: how did you know / how do you know ?

    When you use "did" you are referring to a time in the past.

    The person probably still knows it now, but he or she knew it in the past as well -- at some point in time that was important or the time being discussed.

    You may also use "did" for reported speech, which usually shifts the tense back.
    I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.


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