Basic English Grammar -- Chapter 02 -- Singular and Plural nouns
Singular Noun Definition: When a noun means one only, it is said to be singular.
Examples: boy, girl, book, church, box
Plural Noun Definition: When a noun means more than one, it is said to be
plural. Examples: boys, girls, books, churches
Rule #1
The plural of nouns is usually formed by adding s to a singular noun.
Example: lamp, lamps; cat, cats; fork, forks; flower, flowers; pen, pens
Rule #2
Nouns endin