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Anonymous Posted 15 years ago
Grammar

In use or in used?

which of the below sentence is correct?

Primary key already in use.

or

Primary key already in used.
  

Top answer

Hi, in use Clive

— Clive

  • Hi, in use Clive
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2 Answers
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It is either "in use" or it is "used."

It cannot be "in used."
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