singular = 1	plural = 2+
book	books

Add an "s" to a noun to make it plural.

Singular	Plural
girl	girls
school	schools
pencil	pencils

Example:

Singular   - The girl is walking.
Plural        - The girls are walking.

Number of a noun

Noun	Number
Bill jumps into the water.	singular
Japan is a big country.	singular
Tara writes quickly.	singular
Terry and Robert walk to school.	plural
A mouse eats cheese.	singular
My parents are cooking supper.	plural
Monkeys love to eat rice cakes.	plural

TEST YOURSELF:

Check the box beside the plural nouns.

1.   computers
2.   Terry
3.   books
4.   Canada
5.   book
6.   monkeys
7.   mother
8.   Alexander
9.   pencils
10.  mouse

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  The plural nouns are 1, 3, 6, 9.