1. Irregular Plurals

2. Form most nouns add “s” book - books idea - ideas student - students
camera - cameras
shoe - shoes

3. For nouns ending in s, x, z, ch, or sh, add “es”.
tax – taxes
class - classes
wish – wishes
branch - branches
boss – bosses
fox – foxes

4. For nouns ending in y preceded by a consonant, change the y to “ie” and add “s”.
country – countries
baby - babies
pony – ponies
family - families

5. For nouns ending in y preceded by a vowel by adding “s”.
tray – trays
monkey - monkeys

6. Some nouns ending in f or fe add “s”
Some nouns ending in f or fe add “s”. For others change the f or fe to “v” and add “es”.
thief – thieves
belief – believes
half - halves

7. For nouns ending in o preceded by a vowel add “s”.
decoy – decoys
alley - alleys

8. The plural of many nouns ending in o preceded by a consonant is formed by adding “es”.
hero – heroes
tomato – tomatoes

9. The plural of a few nouns is formed in irregular ways.
mouse – mice
foot – feet
goose – geese
mother-in-law – mothers-in-law
drive-in – drive-ins
deer – deer
fish - fish

10. Form plurals of numerals, dates, signs, and words referred to as words by adding “’s”.
A – A’s

11. Directions: Spell the plural form of each of the following nouns.
monkey
trophy
diary
hoof
Sioux
basketball
Japanese
son-in-law
car pool
sit-up

12. Directions: Spell the plural form of each of the following nouns.
monkeys
trophies
diaries
hooves
Sioux
basketballs
Japanese
sons-in-law
car pools
sit-ups