Irregular Plurals

Form most nouns add “s”

book - books

idea - ideas

student - students

camera - cameras

shoe - shoes

For nouns ending in s, x, z, ch, or sh, add “es”.

tax – taxes class - classes wish – wishes

branch - branches boss – bosses fox – foxes

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

For nouns ending in y preceded by a vowel by adding “s”.

tray – trays monkey - monkeys

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

For nouns ending in o preceded by a vowel add “s”.

decoy – decoys alley - alleys

The plural of many nouns ending in o preceded by a consonant is formed by adding “es”.

hero – heroes tomato – tomatoes

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

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

1900 – 1900’s A – A’s

Directions: Spell the plural form of each of the following nouns.

1. monkey2. trophy3. diary4. hoof5. Sioux6. basketball7. Japanese8. son-in-law9. car pool10. sit-up

Directions: Spell the plural form of each of the following nouns.

1. monkeys2. trophies3. diaries4. hooves5. Sioux6. basketballs7. Japanese8. sons-in-law9. car pools10. sit-ups