Beyond the Rules: Irregular Plural Nouns Worksheet for Class 4

This Grade 4 worksheet on Irregular Plural Nouns is a rich and well-structured grammar resource that helps young learners master one of the most fascinating and often tricky aspects of the English language. Designed for Class 4 students, this worksheet teaches children that not all nouns follow the standard rule of adding "-s" or "-es" to form their plurals. Words like child/children, foot/feet, tooth/teeth, ox/oxen, mouse/mice, goose/geese, deer/deer, sheep/sheep, and fish/fish all have unique plural forms that must be learned individually. Through five engaging and progressively challenging exercises, students build confident, accurate use of irregular plural nouns in both recognition and writing tasks.

Why Do Irregular Plural Nouns Matter in Grammar?

Irregular plural nouns are an important grammar concept for Grade 4 learners because:

1. They appear constantly in everyday reading, writing, and conversation.
2. Using incorrect forms like "sheeps," "childs," or "tooths" is a very common error that affects the quality of written and spoken English.
3. Learning them builds strong noun awareness and vocabulary that supports reading comprehension and composition skills.
4. They are regularly tested in school grammar exams, dictation exercises, and written assignments at the primary level.

What's Inside This Worksheet?

This worksheet includes five thoughtfully designed exercises that take students from multiple choice identification all the way to paragraph writing using irregular plural nouns:

Exercise 1 – Multiple Choice Questions
Students choose the correct plural form of an irregular noun from three options to complete each sentence. The incorrect options such as "sheeps," "childs," "feets," and "deeres" are carefully chosen to reflect the most common errors students make, helping them learn by comparison and elimination.

Exercise 2 – Fill in the Blanks
Students complete sentences using irregular plural nouns from a given word bank that includes children, cacti, aircraft, moose, feet, thieves, oxen, wolves, men, and octopi. Context clues in each sentence guide students to select the most appropriate and grammatically correct plural noun.

Exercise 3 – Match the Following (Picture-Based)
Students match pictures to their correct irregular plural noun labels across two sets. Set 1 includes teeth, mice, oxen, children, and geese. Set 2 includes sheep, fish, women, deer, and feet. This visual activity reinforces recognition of irregular plural forms in a fun and memorable way.

Exercise 4 – Underline the Words
Students read sentences and underline the irregular plural noun in each one. Nouns to identify include feet, children, trout, wolves, women, calves, bison, oxen, hair, and shrimp. This scanning exercise builds students' ability to spot irregular plurals in natural reading contexts.

Exercise 5 – Paragraph Writing
Students complete a farm-visit paragraph by filling in blanks with the correct irregular plural nouns. This applied, creative exercise asks students to draw on everything they have learned across the worksheet and use irregular plurals correctly in a continuous piece of writing.

Answer Key (For Parents & Educators)

Exercise 1 – Multiple Choice Questions
1. b) sheep
2. b) feet
3. c) deer
4. a) teeth
5. c) fish
6. c) children
7. a) oxen
8. c) mice
9. b) geese
10. a) women

Exercise 2 – Fill in the Blanks
1. children
2. cacti
3. thieves
4. aircraft
5. oxen
6. sheep
7. moose
8. men
9. feet
10. octopi

Note: Accepted answers based on word bank provided: children, cacti, thieves, aircraft, oxen, sheep, moose, men, feet, octopi

Exercise 3 – Match the Following (Picture to Label)
Set 1:
Smiling teeth image → teeth
Mice image → mice
Oxen/bulls image → oxen
Two children image → children
Geese image → geese

Set 2:
Flock of sheep image → sheep
Colourful fish image → fish
Group of women image → women
Deer in forest image → deer
Footprints image → feet

Exercise 4 – Underline the Irregular Plural Noun
1. feet
2. children
3. trout
4. wolves
5. women
6. calves
7. bison
8. oxen
9. hair
10. shrimp

Exercise 5 – Paragraph Writing (Sample Answers)
Last sunday, Aarav visited his grandfather's farm in the countryside. His grandfather's farm had many interesting animals. He saw twenty sheep grazing peacefully in the meadow. Near the barn, two strong oxen were resting after working in the fields. A group of geese waddled near the pond, making loud honking sounds. Aarav noticed several fish swimming in the clear water. His grandfather told him that ten deer roam freely in the forest nearby. Many women from the village came to buy fresh milk and vegetables. Their men worked hard carrying heavy baskets. Some children ran around playing games, their happy feet making everyone smile. Aarav brushed his teeth after eating fresh fruits from the farm.

Help your child conquer tricky irregular plural nouns and write with greater accuracy — book a Free 1:1 English Grammar Trial Class at PlanetSpark and build grammar skills that last a lifetime!

Book a free trial!