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    • Member Info
      • Native Language:
      • Japanese
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      • Japan
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      • Japan

    • Join Date: Jan 2008
    • Posts: 559
    #1

    Choice between BEFORE and UNTIL

    Dear all,

    I understand that before and until are not always interchangeable.

    e.g. Brush your teeth [before / until] you go to bed.

    In this case, until is wrong because it sounds like you have to keep on brushing your teeth until you go to bed.

    However, it seems to me they are sometimes interchangeable.

    e.g. Donít get off the bus [before / until] it reaches its destination.

    In the case above, are both until and before really fine?

    Thank you!

    OP


  1. Raymott's Avatar
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      • Australia
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    • Join Date: Jun 2008
    • Posts: 24,103
    #2

    Re: Choice between BEFORE and UNTIL

    Quote Originally Posted by optimistic pessimist View Post

    e.g. Don’t get off the bus [before / until] it reaches its destination.
    That's right, but notice what happens if you remove the negation.
    "Get off the bus [before / until] it reaches its destination." Only 'before' works. Your own examples demonstrate that "Doing something until X" and "Not doing something until X" are not exactly the opposite of each other because 'until' doesn't work like that.

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