This document provides instruction on forming plural nouns in English. It discusses several rules for creating plurals:
1. For most nouns, add -s to the singular form to make it plural (e.g. book to books, table to tables).
2. For nouns ending in a consonant + y, change the y to i and add -es (e.g. baby to babies, city to cities).
3. For nouns ending in a vowel + y, simply add -s (e.g. boy to boys, holiday to holidays).
Exercises are provided applying these rules to create plural forms of sample nouns and fill in puzzles using plural nou