Grammar Power: Mastering Word Forms for Class 3 

This Grade 3 worksheet helps students understand grammar-based word forms through engaging and structured exercises. Learners explore adjectives, adverbs, prefixes, suffixes, homophones like its/it’s, British and American spellings, and synonyms. 
Through a variety of multiple-choice questions, students build a strong understanding of how words change based on usage and meaning. This worksheet strengthens grammar skills, vocabulary development, and sentence formation in a fun and practical way. 

Why Grammar-Based Word Forms Matter? 

Understanding word forms is important because: 
1. It helps students use words correctly in sentences. 
2. It improves grammar accuracy and sentence clarity. 
3. It builds strong vocabulary and language skills. 
4. It supports better writing and communication. 

What’s Inside This Worksheet? 

🧠 Exercise 1 – Word Forms in Sentences 
Students choose correct forms like adjectives and adverbs (careful, quickly, clearly). 

✏️ Exercise 2 – Prefixes and Suffixes 
Learners identify prefixes and suffixes (un-, re-, -ful, -ness). 

📋 Exercise 3 – Its vs It’s 
Students learn correct usage of “its” and “it’s” in sentences. 

📝 Exercise 4 – British vs American Spellings 
Learners identify correct spellings such as colour/color and theatre/theater. 

🔍 Exercise 5 – Synonyms 
Students match words with their correct meanings (help → assist, buy → purchase). 

✅ Answer Key (For Parents & Educators) 

Exercise 1 – Word Forms 
1. careful 
2. clearly 
3. broken 
4. beautifully 
5. sunny 
6. quickly 
7. useful 
8. clean 
9. wise 
10. politely 

Exercise 2 – Prefix & Suffix 
1. misplace 
2. helpful 
3. un 
4. ful 
5. redo 
6. er 
7. preview 
8. careless 
9. ness 
10. dis 

Exercise 3 – Its / It’s 
1. Its 
2. Its 
3. Its 
4. It’s 
5. Its 
6. It’s 
7. Its 
8. It’s 
9. Its 
10. It’s 

Exercise 4 – Spellings 
1. color 
2. favourite 
3. center 
4. metre 
5. defence 
6. theater 
7. travelling 
8. programme 
9. license 
10. jewelry 

Exercise 5 – Synonyms 
1. assist 
2. utilize 
3. obtain 
4. demonstrate 
5. begin 
6. purchase 
7. attempt 
8. inform 
9. repair 
10. want 

Help your child build strong grammar and vocabulary skills with engaging worksheets today! 

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