
Form and use irregular plurals
Free printable Grade 4 English worksheet for "Form and use irregular plurals" — practice nouns (grammar and mechanics). No-prep, print or assign online.
This worksheet focuses on helping students recognize and use irregular plural nouns correctly. Teachers can use it to reinforce grammar skills related to noun forms and to challenge students with advanced pluralization rules. Ideal for Grade 4 English lessons on nouns, this resource supports mastery of irregular plurals through targeted practice.
Learning objectives
- Identify irregular plural nouns in sentences
- Form correct irregular plural nouns from singular nouns
- Use irregular plural nouns accurately in written sentences
Answer Key

How to use this worksheet
- Click “Download Worksheet” to get the PDF — free with a KiwiBee account (up to 50 downloads a month).
- Print at home or in class for Grade 4; it's no-prep, with no extra materials needed.
- Use the included answer key to mark it in seconds.
Frequently asked questions
Is the “Form and use irregular plurals” worksheet free?
Yes. “Form and use irregular plurals” is a free printable English & Reading worksheet. Sign in with a free KiwiBee account to download the PDF — it includes up to 50 downloads a month.
What grade or age is this English & Reading worksheet for?
It's designed for Grade 4 (ages 9–10), covering Nouns.
Does it come with an answer key?
Yes — a matching answer key is included so you can grade it in seconds.
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