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Definition 

Noun is a word generally naming a person, place, or thing. It is either singular or plural.
The singular noun names only one place, person, or thing, while the plural noun names more than one person, place or thing.

There is a set of rules organizing the transformation from singular to plural nouns which can be introduced as following:


Rule (1)

To form the most plural nouns, we only add “-s” to the end of the singular nouns.


Example:

Nouns

Singular

Plural

Flower

Train

Car

spoon

Flowers

Trains

Cars

spoons


Rule (2)

The singular nouns end in "s","ss","sh","ch","x", we usually add "-es" at the end to form the plural.


Example:

Nouns

Singular

Plural

Watch

Bus

Fox

Flash

Watches

Buses

Foxes

Flashes


Rule (3)

To form the plural of the most singular nouns ending in "y" , we simply turn the "y" to "i" , and we add "-es" at the end.


Example:

Nouns

Singular

Plural

Family

Library

City

Lady

Families

Libraries

Cities

Ladies


Rule (4)

To form the plural of the singular nouns which have a vowel before the "y", we add an "-s" at the end.


Example:

Nouns

Singular

Plural

Boy

Day

Cowboy

Toy

Boys

Days

Cowboys

Toys


Rule (5)

For the singular nouns ending in "f", we can distinguish three cases:
  • First: to form the plural of the singular nouns, we often turn "f" to "v", and add "-es" at the end.


Example:

Nouns

Singular

Plural

Half

Thief

Halves

Thieves


  • second: sometimes, we only add "-s"to the end of some nouns in order to get the plural form.


Example:

Nouns

Singular

Plural

Roof

Cliff

Roofs

Cliffs


  • Third: for some nouns, we have two possibilities either using the first or second technique while we operate the transformation from the singular to plural.


Example:

Nouns

Singular

Plural

Dwarf

Hoof

Dwarfs or Dwarfes

Hoofs or Hoofes


Rule (6)

To form the plural of the singular nouns ending in "fe", we often change "f" to "v", and add "-s" at the end.

Example:

Nouns

Singular

Plural

Knife

Wife

Life

Knives

Wives

Lives


Rule (7)

To form the plural of the singular nouns which end in "o", we can also distinguish three cases:
  • first: we usually add "-s" to the end of the singular nouns.


Example:

Nouns

Singular

Plural

Hero

Tomato

Heros

Tomatos


  • Second: with some singular nouns, we add "-es" at the end.


Example:

Nouns

Singular

Plural

Hero

Tomato

Heros

Tomatos


  • Third: we can use either the first or the second technique with other some singular nouns to get the plural form.


Example:

Nouns

Singular

Plural

Mango

zero

Mangos or Mangoes

Zeros or Zeroes


Rule (8)

To form the plural of the singular nouns, we change the spelling.


Example:

Nouns

Singular

Plural

Woman

Man

Foot

Women

Men

Feet


Rule (9)

We keep the same form of some nouns while we transform them to plural.


Example:

Nouns

Singular

Plural

Sheep

Bison

Deer

Sheep

Bison

Deer


Exercises

1) Turn the following singular nouns into plural

student- example- comb- noun- cloth- business- mongoose- virus- box- peach.

2) Put the following singular nouns under their suitable head to get the correct plural form

key- monkey- family- city- tray- lorry- trolley- chimney- fly- butterfly.

Nouns

-s

-ies



3) Mention the singular form of the following plural nouns

analyses- moose- fishes- oxen- dice- leaves- children- people- data- staff- mosquitos.


Answer key


Exercise (1)

students- examples- combs- nouns- cloths- businesses- mongooses- viruses- boxes- peaches.


Exercise  (2)

"-s": key- monkey- tray- trolley- chimney.
"ies": family- city- lorry- fly- butterfly


Exercise (3)

analysis- moose- fish- ox- dice- leaf- child- person- data- staff- mosquito.