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keep in

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phrasal verb [transitive] British
Word Forms
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present tense
I/you/we/theykeep in
he/she/itkeeps in
present participlekeeping in
past tensekept in
past participlekept in
  1. to make someone stay in a place, especially in school as a punishment

    They were kept in after school.

    If he takes her to hospital, they might keep her in.

See also main entry: keep

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