Identify and correct errors with plural and possessive nouns

Nouns are words that name people, places, things, or ideas. Understanding the difference between plural and possessive nouns is essential for clear and effective writing.


Plural nouns indicate that there is more than one person, place, thing, or idea. They are typically formed by adding an -s or -es to the singular form.

a. Regular Plural Nouns

  • Add -s:
  • Example: cat → cats
  • Add -es:
  • Example: box → boxes

b. Irregular Plural Nouns

Some nouns have irregular plural forms that do not follow standard rules.

  • Examples:
  • child → children
  • foot → feet
  • mouse → mice

Possessive nouns show ownership or relationship. They are formed by adding an apostrophe (’) and, in most cases, an -s to the noun.

a. Singular Possessive Nouns

  • Add ‘s to a singular noun:
  • Example: the dog’s bone (the bone of one dog)

b. Plural Possessive Nouns

  • For plural nouns that do not end in -s, add ‘s:
  • Example: the children’s toys (toys of multiple children)
  • For plural nouns that end in -s, add only an apostrophe:
  • Example: the dogs’ park (the park of multiple dogs)

a. Confusing Plural and Possessive Forms

Students often mix up plural and possessive forms. Remember that a plural noun refers to more than one, while a possessive noun indicates ownership.

  • Incorrect: The dog’s are barking. (should be dogs)
  • Correct: The dogs are barking.

b. Misplacing Apostrophes

Ensure the correct placement of apostrophes in possessive nouns.

  • Incorrect: The cat’s toys are on the floor. (if referring to multiple cats, it should be cats’ toys)
  • Correct: The cats’ toys are on the floor.