Where do I put an apostrophe on a plural possessive word that ends in "s"?

Expert Answers
sciftw eNotes educator| Certified Educator

A plural noun likely already ends in an "s," so your apostrophe to make it possessive is simply added after the "s."  For example:

  • The Bakers' house is the big blue one on the corner.
  • The tigers' usual source of water has dried up.
  • The gases' odors mixed and became intoxicating.
  • The witches' brooms were not where they should have been.
  • The babies' beds were all soaking wet from weak diapers.

There is an odd case about words that don't change their form to make a plural.  Fish for instance.  1 fish or 2 fish.  The noun doesn't change.  In that case, you will have to add an "s" or "es" to form the possessive.  Fishes'