Plural Nouns Rules

Front

To make regular nouns plural, add -s to the end.

Back

Examples: cat – cats, house – houses

Front

Add -es to make plural if a noun ends in -s, -ss, -sh, -ch, -x, or -z.

Back

Examples: bus – buses, lunch – lunches

Front

Double the -s or -z before adding -es for some singular nouns.

Back

Example: quiz – quizzes

Front

Change -f or -fe to -ve before adding -s for some nouns.

Back

Example: wife – wives (Exceptions: roof – roofs, belief – beliefs)

Front

Change -y to -ies if a noun ends in -y with a consonant before it.

Back

Example: city – cities

Front

Add -s if a noun ends in -y with a vowel before it.

Back

Example: boy – boys

Front

Add -es if a noun ends in -o.

Back

Example: potato – potatoes (Exceptions: photo – photos, piano – pianos)

Front

Plural ending is -i if a noun ends in -us.

Back

Example: cactus – cacti

Front

Plural ending is -es if a noun ends in -is.

Back

Example: analysis – analyses

Front

Plural ending is -a if a noun ends in -on.

Back

Example: phenomenon – phenomena