Modal Verbs Quiz with Answers
Practise can, could, must, should, may, might and have to for ability, permission, advice and obligation.
When to Use Modal Verbs
Modal verbs are helper words that colour the main verb with ability, permission, obligation, or likelihood. The group includes can, could, must, should, may, might, and the phrase have to. They share a few habits. They sit before the base verb with no to, as in “She can swim”, and they never add an s for he or she, so “He can drives” is wrong.
Each one carries a job. Can and could handle ability and permission, with could softer and more polite. “Could you open the window?” is gentler than the blunt can. Must and have to push obligation, while should offers advice, as in “You should rest”. May and might deal in possibility, with may leaning slightly more certain. “It might rain later” keeps the door open either way. Must can also signal a strong guess, so “She must be tired” reads as a confident conclusion, not a command.
Common Mistakes
A big one is must not versus do not have to. They are opposites, not twins. “You must not go” bans the action, while “You do not have to go” simply frees you from it. Another common slip is adding to after a modal, giving “I can to help” instead of “I can help”. A third is putting a modal into the past by adding ed. There is no “musted” or “canned”. For past ability you switch to could, and for past obligation you use had to.
A tip to steer by. Modals do not change their form to match the subject, so once you drop the s and the to, most of your errors disappear on their own. When you need a polite tone, slide from can to could or from will to would and the sentence softens at once.
Choose an answer for each question. You get the correct answer and a short reason straight away, then your total score at the end.
1. Choose the correct modal: “Ananya ___ speak three languages fluently.”
2. Fill in the blank: “___ I borrow your pen for a minute, sir?”
3. Choose the best modal: “You ___ wear a helmet while riding a bike. It is the law.”
4. Which modal gives advice? “You look tired, Rahul. You ___ take some rest.”
5. Fill in the blank for past ability: “When I was young, I ___ run very fast.”
6. Choose the correct modal for possibility: “Take an umbrella. It ___ rain later.”
7. Which sentence shows a logical deduction (near certainty)?
8. Fill in the blank: “I ___ finish this report by tonight, or my boss will be upset.”
9. Choose the correct form: “You ___ smoke here. It is not allowed.”
10. Identify the correct sentence.
11. Choose the polite request: “___ you please pass me the salt?”
12. Which modal fits negative deduction? “Meera has just finished a big lunch. She ___ be hungry now.”
13. Find the error: “She must to submit the form before Friday.”
14. Choose the correct modal: “It’s only a short walk. We ___ take a rickshaw.”
15. Transform to show past obligation that was not done: “It was important to call her, but I forgot.” Which fits? “I ___ called her.”
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