Free Worksheet on Irregular Plural Nouns

 

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Most of the time you make nouns plural by adding an S:

One dog, two dogs

One banana, two bananas

However, some nouns insist on being difficult. They want to stand out in the crowd, so they make their plurals different from their singular forms.

One woman, two women

One man, two men.

Below are some more nouns that like to be different. We call these irregular nouns. IR=not. This will help you to remember they aren't regular.

Write the plural form of these irregular nouns:

1. person

2. foot

3. bus

4. sky

5. penny

6. turkey

7. mouse

8. child

9. tooth

10. deer (This one is tricky!)

Bonus: What is the plural form of hippopotomus? Look it up if you don't know! Hint: There are two possible answers. One is more common. The other is used when you're being very formal.

Help! I think I'm seeing double!