Modal verbs of deduction: Must, May, Might, Could, Can’t

This exercise helps you understand and practice modal verbs of deduction such as must, may, might, could, and can’t. These verbs are used to express how sure we are about something. For example, “She must be at work” shows strong certainty, while “She might be at work” suggests possibility. Through real-life sentence examples, you’ll learn how to choose the right modal verb depending on the context. Improve your confidence in expressing assumptions and logical conclusions in English!

1. That _____ Tom at the door. I just saw his car outside.

2. He _____ at home. I called him and no one answered.

3. They _____ on vacation. I haven’t seen them all week.

4. She _____ sleeping. It's still early.

5. This _____ true. It's just too strange.

6. You _____ tired after such a long trip.

7. It _____ snowing already. Let’s check the window.

8. She _____ angry. We forgot her birthday.

9. This _____ the right address. The number matches exactly.

10. They _____ serious. That plan would never work.

11. He _____ joking. That offer sounds too good to be real.

12. She _____ at work already. Her car is gone.

leximity loading