A Grammar Lesson

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Whose or Who’s?

  • Whose is the possessive form of who (or, occasionally, which). It means “belonging to whom or which.”
  • Who’s is a contraction of who is or who has. Notice the apostrophe replacing the missing letters.


Incorrect: Who’s department do you work for?

Correct: Whose department do you work for?

Correct: Who’s coming to visit tomorrow?