

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.
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.
🧠 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).
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!
This worksheet covers adjectives, adverbs, prefixes, suffixes, homophones, spelling variations, and synonyms to strengthen grammar skills.
They help students understand word meanings and how words change form, improving vocabulary and comprehension.
It builds a strong grammar foundation, helping children form correct sentences and communicate effectively.