We can make singular nouns to plural nouns in many different ways by adding ‘s, es’, changing ‘y’ to ‘ies’ or ‘f, fe’ to ‘ves’ or same nouns show the change and some other nouns still keep the same form from singular to plural.
1- First Case
We make a singular noun to a plural noun by adding ‘s’ to singular noun.
| Singular | Plural |
| book cat dog boat | books cats dogs boats |
2- Second Case
For nouns consist of (o, x, s, ss, sh, ch, z) at the end; when we make plural form, we add ‘es’.
| Singular | Plural |
| mango box bus glass brush watch quiz | mangoes boxes buses glasses brushes watches quizzes |
NOTE 1: Some nouns consist of “O” at the end; but we don’t add “es”, we only add “s” to singular noun when we want to make plural form.
| Singular | Plural |
| bamboo radio piano zoo photo | bamboos radios pianos zoos photos |
NOTE 2: Some other nouns are finished by “O” at the end, and we can add “s/es” to singular nouns to make plural form.
| Singular | Plural | Plural |
| buffalo cargo mosquito volcano | buffalos cargos mosquitos volcanos | buffaloes cargoes mosquitoes volcanoes |
3- Third Case
For singular nouns that consist of “ y” at the end, when we want to make plural form; we change “y” to “ies”.
| Singular | Plural |
| country fly candy library | countries flies candies libraries |
NOTE: Some nouns consist of “y” at the end; but we don’t change “y” to “ies”, we only add “s” when we want to make plural form.
| Singular | Plural |
| day toy monkey valley | days toys monkeys valleys |
4- Fourth Case
For some other nouns that contain “f, fe” at the end; when we make plural form , we change “f, fe” to “ves”.
| Singular | Plural |
| shelf sheaf life knife | shelves sheaves lives knives |
NOTE: Some nouns end in “f, fe” at the end; but we don’t change “f, fe” to “ves” , we only add “s” to singular noun when we want to make plural form.
| Singular | Plural |
| chief proof safe fife | chiefs proofs safes fifes |
5- Regular Noun
Some nouns still keep the same form from singular to plural form. Those nouns are called “regular noun”.
| Singular | Plural |
| Sheep Deer Fish Swine | sheep deer fish swine |
6- Irregular Noun
There are some nouns which change their forms when we change from singular to plural form. Those kinds of noun are called irregular noun”.
| Singular | Plural |
| child foot ox mouse louse | children feet oxen mice lice |
