think (imperative) / use your brains

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Senior Member
I heard someone use the verb think as an imperative, but I'm not sure if that is correct usage. For example, I had a colleague who was irritated with people who did not have common sense. He would say something like this:

a) John, think.

I normally hear use your brains in this context and, I think, it sounds natural:

b) John, use your brains.

Can you confirm this information and can you give other expressions used?
  • owlman5

    Senior Member
    It is fine to say "Think, John!" or "John, think!". It is also normal to say "John, use your brains!" Neither version sounds more natural than the other to me.


    Senior Member
    Plese let me put a similar question here:
    1. Think (harder)
    2. Use your head.
    3. Use your brains.
    4. Use your mind.

    It is said number4 is incorrect. Is it true?

    Thank you.
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