Singular	Plural	Examples
Most nouns	We add –S at the end	Ticket Tickets
Most nouns	We add –S at the end	Doll Dolls
Nouns ending in: -CH -SH -S -Z/ZZ -X -SS	We add –ES at the end	Witch Witches	Fox Foxes
		Brush Brushes	Glass Glasses
		Bus Buses	Buzz Buzzes
Nouns ending in: consonant plus -Y	We replace the –Y with -IES	Baby Babies
Nouns ending in: consonant plus -Y	We replace the –Y with -IES	Story Stories
Nouns ending in: vowel plus -Y	We add –S at the end	Day Days
Nouns ending in: vowel plus -Y	We add –S at the end	Toy Toys
Nouns ending in: -F o -FE	We replace the -F with -VES	Thief Thieves
	We replace the -F with -VES	Knife Knives
	There are exceptions:	Roof Roofs
	There are exceptions:	Sheriff Sheriffs
Nouns ending in: -O	We add –ES at the end	Potato Potatoes	Tomato Tomatoes
	We add –ES at the end	Hero Heroes	Mosquito Mosquitoes
	There are exceptions:	Photo Photos	Piano Pianos
Nouns with no singular form	Always in plural	Scissors Scissors
Nouns with no singular form	Always in plural	Trousers Trousers
Invariable nouns	Same form both in singular and plural	Fish Fish
Invariable nouns	Same form both in singular and plural	Sheep Sheep
Irregular plurals	They may change one part or almost the whole word when turned into a plural	Foot Feet	Tooth Teeth
		Mouse Mice	Child Children
		Man Men	Woman Women

To form the plural of most nouns we add the ending –S.

Singular	Plural	Examples
Noun	Noun plus -S	Ticket Tickets

However, there a few exceptions to take into account:

Other exceptions:

Words with only a plural form	Scissors
	Trousers
Words with the same form both in singular and in plural	Fish Fish
	Sheep Sheep
Words that suffer some changes when turned into a plural	Foot Feet
	Woman Women
	Child Children