Irregular Plural Nouns Worksheets & Exercises (Free PDF Download)

Not all nouns play by the rules! While most plural nouns just add -s or -es, irregular plural nouns like children, feet, and mice change in unique and surprising ways. Learning them helps students speak and write more clearly and correctly. These irregular plural nouns worksheets are designed to make practice fun and easy, with matching activities, fill-in-the-blanks, and sentence exercises. Ready to turn one tooth into many teeth? Let’s get started!

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Matching Irregular Plural Nouns Worksheet

1. Match the singular nouns with the irregular plural nouns.

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2. Draw a line to match the picture to the correct spelling of the singular or plural form.

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Fill in the Blank Irregular Plural Nouns Worksheet

1. Look at the animals and complete the sentences with the correct singular and plural word.

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2. Make the singular nouns into plural nouns.

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3. Fill in the blanks with the correct answer.

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Cut and Paste Irregular Plural Nouns Worksheet

Cut and paste the irregular plural next to the singular form.

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Irregular Plural Nouns Exercises

Irregular Plural Nouns Exercise 1: Fill in the Blank

Directions: Complete each sentence by writing the correct irregular plural noun form of the word in brackets.

1. The _______ (child) are playing in the yard.
2. Several _______ (tooth) fell out of the baby’s mouth.
3. We saw many _______ (goose) flying south for the winter.
4. The _______ (foot) of the table were painted white.
5. Five _______ (mouse) were hiding behind the fridge.
6. The _______ (woman) are preparing a big dinner.
7. All the _______ (leaf) turned yellow in the fall.
8. These _______ (person) are waiting for the bus.
9. The _______ (wolf) howled at the moon.
10. Those _______ (ox) are pulling the heavy cart.

Answer Key:

Irregular Plural Nouns Exercise 2: Choose the Correct Plural

Directions: Choose the correct plural form for each singular noun. Circle A, B, or C.

1. cactus → A) cactuses B) cacti C) cactus
2. man → A) mans B) manes C) men
3. analysis → A) analysises B) analyses C) analysis
4. goose → A) geese B) gooses C) goosen
5. fungus → A) fungi B) funguses C) fungus
6. syllabus → A) syllabuses B) syllabi C) syllabus
7. crisis → A) crises B) crisises C) crisis
8. deer → A) deers B) deer C) deeres
9. fish → A) fish B) fishes C) fishs
10. nucleus → A) nucleuses B) nuclei C) nucleis

Answer Key:

Irregular Plural Nouns Exercise 3: Create Sentences

Directions: Use the given irregular plural noun in a complete sentence.

1. children
2. teeth
3. feet
4. mice
5. men
6. women
7. geese
8. oxen
9. people
10. leaves

Sample Answer Key (Example Sentences):

1. Children are playing happily in the schoolyard.
2. I brush my teeth twice a day.
3. My feet were sore after the long walk.
4. The mice ran into their hole quickly.
5. Three men helped carry the heavy table.
6. The women gathered for the meeting.
7. We saw a flock of geese flying overhead.
8. The oxen pulled the heavy cart through the field.
9. Many people came to the concert last night.
10. In the fall, the leaves turn red and yellow.

Learn more about: Irregular Plural Nouns in English