Common Modal Verbs and Their Meanings:
* Can/Could: Ability, possibility, permission, requests.
* I can speak Spanish. (ability)
* It could rain later. (possibility)
* Can I use your phone? (permission/request)
* May/Might: Possibility, permission (may is more formal for permission).
* She may be at home. (possibility)
* You may leave now. (permission)
* Must: Necessity, strong obligation, logical deduction/certainty.
* You must wear a seatbelt. (obligation)
* He must be tired. (logical deduction)
* Should/Ought to: Advice, recommendation, expectation.
* You should exercise regularly. (advice)
* They ought to arrive soon. (expectation)
* Will/Would: Future actions, willingness, polite requests, past habits (would).
* I will help you. (willingness/future)
* Would you mind closing the door? (polite request)
* When I was a child, I would play outside for hours. (past habit)
* Shall: Offers, suggestions (less common in American English, more formal or in questions with "I/we").
* Shall I open the window? (offer)
WORKSHEET
Instructions: Read each question carefully and provide the best answer.
Part 1: Identifying Correct Usage
Circle the correct sentence in each pair.
* a) She can to sing very well.
b) She can sing very well.
* a) He musts finish his homework.
b) He must finish his homework.
* a) Do you should go now?
b) Should you go now?
* a) They might not come to the party.
b) They mightn't to come to the party.
* a) I could running fast when I was young.
b) I could run fast when I was young.
Part 2: Completing Sentences with Modals
Choose the most appropriate modal verb (can, could, may, might, must, should, will, would) to complete each sentence. Use each modal at least once.
* You ___________ wear a helmet when cycling; it's the law.
* ___________ I borrow your pen, please?
* If you study hard, you ___________ pass the exam easily.
* It's very cloudy. It ___________ rain later this afternoon.
* When I was a child, I ___________ spend hours building Lego castles.
* You ___________ apologize for your behavior; it was unacceptable.
* He ___________ be tired after working all night. (logical deduction)
* I ___________ help you with your project if you need assistance.
Part 3: Expressing Different Meanings
Rewrite each sentence using a modal verb to express the meaning in parentheses.
* It is possible that she is late. (Possibility - weaker)
* It is necessary for you to complete this task by tomorrow. (Obligation)
* Is it okay if I sit here? (Permission - polite)
* You are able to speak three languages. (Ability)
* I advise you to get some rest. (Advice)
* I promise I will call you later. (Future intention/Promise)
Part 4: Error Correction
Find and correct the error in each sentence.
* They must to leave now.
* She cans play the guitar beautifully.
* Did he should study for the test?
* We might could go to the beach tomorrow.
* You should't to worry so much.
Answer Key: Modal Verbs Worksheet
Part 1: Identifying Correct Usage
* b) She can sing very well.
* b) He must finish his homework.
* b) Should you go now?
* a) They might not come to the party.
* b) I could run fast when I was young.
Part 2: Completing Sentences with Modals
* You must wear a helmet when cycling; it's the law.
* May I borrow your pen, please? (Could/Can are also acceptable but May is most polite)
* If you study hard, you will pass the exam easily.
* It's very cloudy. It might rain later this afternoon.
* When I was a child, I would spend hours building Lego castles.
* You should apologize for your behavior; it was unacceptable.
* He must be tired after working all night. (logical deduction)
* I can help you with your project if you need assistance. (Will is also acceptable here for willingness)
Part 3: Expressing Different Meanings
* It is possible that she is late. (Possibility - weaker)
She might be late.
* It is necessary for you to complete this task by tomorrow. (Obligation)
You must complete this task by tomorrow.
* Is it okay if I sit here? (Permission - polite)
May I sit here? (Could/Can are also acceptable)
* You are able to speak three languages. (Ability)
You can speak three languages.
* I advise you to get some rest. (Advice)
You should get some rest.
* I promise I will call you later. (Future intention/Promise)
I will call you later.
Part 4: Error Correction
* They must to leave now.
Correction: They must leave now.
* She cans play the guitar beautifully.
Correction: She can play the guitar beautifully.
* Did he should study for the test?
Correction: Should he study for the test?
* We might could go to the beach tomorrow.
Correction: We might be able to go to the beach tomorrow. (or "We might go...")
* You should't to worry so much.
Correction: You shouldn't worry so much.
