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 – 1900s A – As

Directions: Spell the plural form of each of the following nouns. 1. monkey 2. trophy 3. diary 4. hoof 5. Sioux 6. basketball 7. Japanese 8. son-in-law 9. car pool 10. sit-up

Directions: Spell the plural form of each of the following nouns. 1. monkeys 2. trophies 3. diaries 4. hooves 5. Sioux 6. basketballs 7. Japanese 8. sons-in-law 9. car pools 10. sit-ups