Just by adding 's'
View AnswerBooks
Bottles
Keys
Boys
Girls
Just by adding 'es
View AnswerBabies
Ladies
Files
Shoes
Thieves
Just by adding 'en
View AnswerMen
Women
Chicken
Alien
Canteen
Change Y into 'IES'
View AnswerLadies
Babies
Families
Butterflies
Countries
Change F with 'VES'
View AnswerWives
Thieves
leaves
knives
dwarves
Exceptions
-
Some Nouns have Same Singular and Plural
Example
- Spacecraft − Spacecraft
- Sheep − Sheep
- Pair − Pair
-
Species − Species
-
Some Nouns are Only used in Plural
Example
- Scissors
- Spectacles
- Tongs
-
Headphones
-
Some Nouns are Singular but end with s
Example
- News
- Jeans
- Trousers
-
drawers
-
Some Nouns are actually Singular but appear Plural
Example
- Police − Police
- Family − Family
- Army − Army
- Committee − Committee