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  1. bebe heart's Avatar
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      • Pashto, Pushto
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      • Pakistan
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      • Qatar

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    #1

    Post present or past

    If I don't use my brain, I lose it.
    If I didn't use my brain, I lost it.
    If I don't use my brain, I will lose it.
    If I didn't use my brain, I lose it.
    Are above sentences correct?

  2. emsr2d2's Avatar
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      • British English
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      • UK
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      • UK

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    #2

    Re: present or past

    Quote Originally Posted by bebe heart View Post
    If I don't use my brain, I lose it.
    If I didn't use my brain, I lost it.
    If I don't use my brain, I will lose it.
    If I didn't use my brain, I lose it.

    Are the above sentences correct?
    As you can see above, only #3 is correct.

    "If I don't use my brain, I will lose it" uses the correct construction. It should be noted that I don't find the idea of "losing your brain" to be very natural but I can understand what you're trying to convey. I would probably say something like "If I don't use my knowledge, I will lose/forget it". But, for now, let's stick with the words you've used. Here are the possibilities:

    If I don't use my brain, I will lose it.
    If I didn't use my brain, I would lose it.
    If I hadn't used my brain, I would have lost it.

    If you're talking about a general state of affairs, you could say "If you don't use your brain, you lose it".
    Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.

  3. Matthew Wai's Avatar
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      • Chinese
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      • China
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      • Hong Kong

    • Join Date: Nov 2013
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    #3

    Re: present or past

    I consider the following pages about conditional sentences helpful to the OP, but I am not a teacher.
    https://www.ego4u.com/en/cram-up/gra...onal-sentences
    http://www.perfect-english-grammar.c...nditional.html

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