Irregular Plural Nouns

Contributor: Melissa LaRusso. Lesson ID: 10441

Are there other children in your class? Why don't we call them childs? Watch a video and play online as well as hands-on games to learn about the nouns that become plural in different and weird ways.


Grammar, Grammar

English / Language Arts
learning style
personality style
Grade Level
Intermediate (3-5)
Lesson Type
Quick Query

Lesson Plan - Get It!

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"One fish, two fish, red fish, blue fish" -Dr. Seuss 

Did you know that the word fish does not change whether you are talking about one fish or a lot of fish?

A singular noun tells about one person, place, thing or idea.

A plural noun tells about more than one person, place, thing or idea. Most of the time you will add an s or es to a noun to make it plural.

There are exceptions to this rule:

  • Some nouns ending in f or fe from the plural by changing the f or fe to v and adding es.
    knife becomes knives
  • A few nouns form the plural by a change of vowels within the singular.
    man becomes men
    tooth becomes teeth
    mouse becomes mice
  • A few nouns form the plural by adding en or ren.
    ox becomes oxen
    child becomes children
  • A few nouns do not change when going from singular to plural.
    deer remains deer
    sheep remains sheep
    fish remains fish

Watch the following video to learn more about using irregular plural nouns (may require setting up a free account):

Form more irregular plural nouns | LearnZillion

Now, continue on to the Got It? section for some regular practice using irregular nouns!

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