

This Grade 3 English grammar worksheet helps students strengthen their understanding of plurals, comparisons, and editing skills through structured, step-by-step practice. It combines word formation, sentence correction, and vocabulary improvement to build strong writing foundations.
Learners practice forming plural nouns using common spelling rules such as changing -y to -ies and -f to -ves. The worksheet also introduces comparative and superlative adjectives using -er and -est, helping children describe people, objects, and situations more clearly.
Designed for Class 3 students, the activities gradually progress from word-level practice to sentence-level editing. Learners also work on long-vowel spellings and correcting common grammar mistakes, encouraging attention to detail and self-correction.
By completing this worksheet, students develop accuracy, confidence, and independence in writing while reinforcing essential grammar concepts used in everyday communication.
Why Plurals and Editing Skills Matter in Grammar?
Plurals, comparisons, and editing are essential building blocks of clear writing. For Grade 3 learners, this topic is important because:
1. Correct plurals help avoid common noun mistakes.
2. Comparatives and superlatives improve descriptive language.
3. Editing teaches students how to spot and fix errors.
4. These skills support fluent, confident writing.
This worksheet includes six grammar-rich activities:
✏️ Exercise 1 – Plurals Ending in -y
Students change nouns ending in -y to -ies to form correct plurals.
🧠 Exercise 2 – Plurals Ending in -f
Learners convert words ending in -f to -ves to make plural forms.
📘 Exercise 3 – Comparatives and Superlatives
Students use -er and -est to form correct adjective comparisons.
📝 Exercise 4 – Long Vowel Spellings
Learners complete words using correct long-vowel patterns such as ai, ea, ee, oa, and oo.
🛠️ Exercise 5 – Sentence Editing
Students identify incorrect words and rewrite each sentence correctly.
✨ Exercise 6 – Better Word Choices
Learners replace weak words with stronger, more descriptive vocabulary.
Exercise 1 – Plurals (-y to -ies)
1. cities
2. ladies
3. stories
4. puppies
5. families
6. cherries
7. parties
8. butterflies
9. fairies
10. hobbies
Exercise 2 – Plurals (-f to -ves)
1. wolves
2. calves
3. knives
4. shelves
5. loaves
6. halves
7. halves
8. scarves
9. wives
10. thieves
Exercise 3 – Comparatives and Superlatives
1. taller
2. smaller
3. coldest
4. longer
5. quickest
6. brightest
7. younger
8. strongest
9. shorter
10. highest
Exercise 4 – Long Vowel Words
1. pain
2. road
3. team
4. seat
5. food
6. cheer
7. moon
8. clean
9. goat
10. shoot
Exercise 5 – Sentence Editing
1. She went to school early.
2. He has two feet.
3. The baby is smaller than me.
4. I bought a new bag.
5. The dog is faster today.
6. We ate lunch together.
7. She has many children.
8. This book is better than that one.
9. He caught the ball.
10. The box is heavier.
Exercise 6 – Better Word Choices (Sample Answers)
1. delicious
2. huge
3. frightened
4. difficult
5. furious
6. tiny
7. noisy
8. hilarious
9. exhausted
10. spooky
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Plurals show more than one noun and can change using -s, -es, or irregular forms like children and mice.
Children may forget to change verbs or use incorrect plural forms, which editing practice helps fix.
They strengthen proofreading ability and improve sentence correctness in Class 3 English.