When to use apostrophes

Apostrophes are used for showing possession and short form. They are not used to show plurals nor are they used with possessive pronouns.

Showing possession:

  • Greta’s book.
    (Greta has a book.)
  • The dog’s bowl.
    (The dog has a bowl.)

Showing the possessive form of singular and plural nouns that end with –s:

  • The actress’ best film.
    (The actress has a best film.)
  • His mathematics’ book.
    (He has a book about mathematics.)
  • The cars’ big wheels.
    (Many cars have big wheels.)
  • The heroes’ problems.
    (Many heroes have problems.)

Showing short form: it’s, can’t, haven’t, etc.

  • It’s my car.
    (It is my car.)
  • I haven’t been to Indonesia yet.
    (I have not been to Indonesia yet.)

Not used with plurals:

  • Cat’s, Dog’s, Orange’s, ABC’s.
    Cats, Dogs, Oranges, ABCs.

Not used with the possessive pronouns: yours, his, hers, its, ours, theirs.

  • Shall we take your’s or their’s?
    Shall we take yours or theirs?
  • Our hotel room is next to their’s hotel room.
    Our hotel room is next to theirs.

Not used with the possessive adjective its:

  • The dog licked it’s paw.
    The dog licked its paw.

Now try the English Punctuation Quiz.