Rules For Singular And Plural Nouns. There are many different rules regarding pluralization depending on what letter a noun ends in. Singular nouns and plural nouns refer to the number of a person, animal, or thing.
Scroll down the page for examples and explanations. Remember the rules for collective nouns and. Nouns used only in the singular.
If a noun ends in ch, sh, s or x, add -es to form the plural.
What that means is it obeys this one rule.
There are two things to note about singular and plural nouns. You know the basic rule of adding ‐s to make the plural of a noun ( one cat, three cats), and you also know that many nouns don't follow that rule—for example, sheep (singular). A plural irregular noun has a different ending (hoof/hooves) or spelt differently from the singular noun (tooth/teeth).