

This engaging worksheet helps students understand and practice modal verbs, focusing on can, may, and must. Ideal for Grade 3 learners, the worksheet includes various exercises such as fill-in-the-blanks, true/false statements, multiple-choice questions, sentence rewriting, and paragraph writing. These tasks aim to enhance grammar skills by using modals in different contexts, emphasizing their meanings: can for ability, may for permission/possibility, and must for rules/necessity.
This worksheet builds grammar understanding in a practical, age-appropriate way, allowing learners to express themselves more fluently and confidently in both speaking and writing.
Modal verbs help shape meaning beyond basic action. For Grade 3 learners, this topic is important because:
1. Modals express possibility, necessity, permission, and ability.
2. They always follow the base form of the verb.
3. They support polite and structured communication.
4. They are used in formal writing, dialogue, and everyday conversation.
This worksheet includes five grammar-rich activities that build fluency with modal verbs:
Exercise 1 – Fill in the blanks
Students will fill in the blanks with the correct modal verb (can, may, must) based on the context provided in each sentence.
Exercise 2 – True/False
Students will read the sentences and determine if the modal verb is used correctly in each context.
Exercise 3 – Multiple Choice Questions
In this multiple-choice exercise, students will select the correct modal verb (can, may, must) to complete each sentence.
Exercise 4 – Sentence Rewriting
Students will rewrite sentences by replacing the incorrect modal verb with the correct one from the given box.
Exercise 5 – Paragraph Writing.
Students will write a short paragraph using the modal verbs can, may, and must correctly.
Exercise 1 – Fill in the Blanks
1. can
2. may
3. must
4. can
5. may
6. must
7. can
8. must
9. may
10. can
Exercise 2 – True or False
1. False
2. True
3. True
4. True
5. True
6. True
7. False
8. False
9. False
10. True
Exercise 3 – Choose the Correct Modal Verb
1. b) can
2. c) must
3. c) may
4. a) can
5. b) may
6. c) must
7. b) can
8. a) must
9. c) may
10. a) can
Exercise 4 – Sentence Rewriting
1. The teacher may be absent tomorrow. (Possibility)
2. I can run faster than my brother. (Ability)
3. We must wear uniforms every school day. (Rule)
4. Birds can fly high in the sky. (Ability)
5. May I enter the class, ma’am? (Formal Permission)
6. You must follow the safety rules. (Rule)
7. Meera can paint quickly because she practises a lot. (Ability)
8. The results may be delayed. (Possibility)
9. You must wear a seatbelt while driving. (Rule)
10. Pooja can swim very well. (Ability)
Exercise 5 – Paragraph Writing
Answers may vary.
Help your child master modal verbs today with a Free 1:1 Communication Skills Trial Class at PlanetSpark.
Modal verbs are used to show possibility, ability, permission, or necessity. For example, "I can swim," "You may go," "You must study."
Can indicates ability, while "must" shows obligation. For instance, "I can dance" vs. "You must finish your homework."
Modal verbs teach children how to express various degrees of permission, ability, and necessity in everyday situations.