Free printable practice
Irregular Nouns Practice Activities
Printable Class 3 grammar worksheets for practising irregular plural nouns through matching, sorting, sentence completion and noun rewriting tasks.
Practice that builds confidence
Understanding irregular nouns
These Class 3 irregular nouns practice activities help children recognise nouns that do not follow the usual “add s” or “add es” plural rule. Learners practise forms such as child/children, tooth/teeth, mouse/mice, foot/feet, man/men and nouns that stay the same, such as sheep.
The printable worksheets include matching pairs, sorting regular and irregular plurals, completing sentences, correcting noun errors and rewriting singular nouns as plural nouns in context. Each activity builds accuracy in grammar and writing without relying on memorisation alone.
Irregular plural nouns are nouns that change in special ways when they name more than one person, animal, place or thing. Instead of cat/cats or box/boxes, children meet patterns like tooth/teeth, goose/geese and woman/women. Some nouns do not change at all, such as sheep and deer. These worksheets help Class 3 learners notice that plural meaning can be shown in different ways.

Progression across the worksheets
The practice usually begins with simple recognition: matching a singular noun to its plural form or choosing the correct word from two options. It then moves to sorting regular and irregular nouns, filling blanks in meaningful sentences, and correcting mistakes such as “mouses” or “childs”. Later tasks ask children to rewrite phrases and short sentences, so they use the plural noun naturally rather than only naming it from a list.
Parent practice routine
At home, read one singular noun aloud and ask your child to say the plural before writing it. Then ask for a short oral sentence: “The mice ran under the table.” Keep a small “tricky noun” list in the notebook with three columns: singular, plural and my sentence. Revisit five words every few days instead of trying to memorise a long list at once.

Classroom uses for teachers
Teachers can use these printables during grammar lessons, language centres, early-finisher practice or revision before a writing task. A useful group activity is to give children noun cards and ask them to find their plural partners. The worksheets also work well for checking whether pupils can apply irregular plurals in sentences, not just recite pairs.

Common errors to watch for
Many children overapply the regular plural rule and write “foots”, “tooths” or “mans”. Others recognise the correct plural in isolation but choose the wrong form in a sentence, such as “The children plays” or “Two mouse are hiding.” Encourage them to check both the noun form and the nearby verb when reading their answer aloud.
Free printable PDF download
Use this Class 3 irregular nouns worksheet page to preview the activity, print it, or download it as a PDF for quick practice. It works well for homework, homeschool lessons, tutoring, morning work, revision, and classroom centers.
Answers and answer key support
After the child completes the worksheet independently, parents and teachers can use the answer support or answer key information to check the work, review mistakes, and choose the next practice step.
Why iBloom worksheets help
The activities give repeated practice through different formats, so children build memory, meaning and usage together. A child-friendly strategy is: “Say one, say many, use it in a sentence.” This simple routine helps learners slow down, hear the correct plural and confirm that the noun fits the sentence.
Helpful answers
Frequently asked questions
What are irregular nouns for Class 3?
Irregular nouns are nouns whose plural forms do not follow the usual rule of adding “s” or “es”. Examples include child/children, foot/feet, tooth/teeth, mouse/mice and sheep/sheep.
How do these worksheets help children learn irregular plurals?
They give practice in several ways: matching singular and plural forms, sorting regular and irregular nouns, filling blanks, correcting wrong plurals and using the correct noun in sentences.
Should children memorise all irregular nouns at once?
No. It is better to learn a small group at a time, say the words aloud, write the plural form and use each one in a sentence. Regular revision helps the forms become familiar.
What mistakes should I look for in my child’s answers?
Watch for regular endings added to irregular nouns, such as “childs”, “mouses” or “tooths”. Also check whether the sentence still sounds correct after the plural noun is added.
Can these worksheets be used for classroom revision?
Yes. Teachers can use them for grammar practice, language centres, partner work, homework or quick revision before children write sentences and paragraphs using plural nouns.
Is this Class 3 irregular nouns worksheet free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this Class 3 irregular nouns worksheet as a PDF?
Yes. Use the worksheet download option to save a printable PDF, or print the worksheet directly from the page.
Does this Class 3 irregular nouns worksheet include answers or an answer key?
When the activity has fixed answers, iBloom includes answer support so parents and teachers can check the completed worksheet.