Chapter 31 — Modal Verbs (Can, Could, Must, Should) | Unnati Classes
Chapter 31

Understanding and Using Modal Verbs (Can, Could, Must, Should)

31.1 Introduction

Modal verbs are special helping verbs used to show ability, permission, possibility, advice, or obligation.

In this chapter, you will learn how to use Can, Could, Must, and Should correctly in daily English conversations.

31.2 Meaning and Use of Modal Verbs

  • Can – ability or permission
  • Could – polite request or past ability
  • Must – strong necessity or rule
  • Should – advice or suggestion

31.3 50 Common Sentences Using Modal Verbs

  1. 1. I can speak English.
    → That’s great.
  2. 2. Can I come in?
    → Yes, you can.
  3. 3. Could you help me?
    → Sure.
  4. 4. I could run fast when I was young.
    → That’s nice.
  5. 5. You must wear a helmet.
    → Okay.
  6. 6. Students must follow rules.
    → Yes.
  7. 7. You should study daily.
    → I will.
  8. 8. You should drink water.
    → Thank you.
  9. 9. Can you repeat?
    → Yes.
  10. 10. Could I use your phone?
    → Of course.
  11. 11. I can do this work.
    → Good.
  12. 12. Can we start?
    → Yes.
  13. 13. Could you explain again?
    → Sure.
  14. 14. You must complete homework.
    → Okay.
  15. 15. You should sleep early.
    → I agree.
  16. 16. I can read well.
    → That’s nice.
  17. 17. Can I ask a question?
    → Yes.
  18. 18. Could you come tomorrow?
    → Yes.
  19. 19. You must be careful.
    → Sure.
  20. 20. You should eat healthy food.
    → Yes.
  21. 21. I can help you.
    → Thank you.
  22. 22. Can we go now?
    → Yes.
  23. 23. Could you slow down?
    → Okay.
  24. 24. You must respect elders.
    → Yes.
  25. 25. You should practice daily.
    → I will.
  26. 26. I can understand now.
    → Good.
  27. 27. Can I sit here?
    → Yes.
  28. 28. Could you wait?
    → Sure.
  29. 29. You must reach on time.
    → Okay.
  30. 30. You should listen carefully.
    → Yes.
  31. 31. I can improve my English.
    → Definitely.
  32. 32. Can I leave now?
    → Yes.
  33. 33. Could you close the door?
    → Sure.
  34. 34. You must follow instructions.
    → Okay.
  35. 35. You should try again.
    → I will.
  36. 36. I can do better.
    → Yes.
  37. 37. Can you hear me?
    → Yes.
  38. 38. Could you help later?
    → Sure.
  39. 39. You must be honest.
    → Yes.
  40. 40. You should be confident.
    → Thank you.
  41. 41. I can learn English.
    → Yes, you can.
  42. 42. Can I try?
    → Go ahead.
  43. 43. Could you teach me?
    → Sure.
  44. 44. You must not lie.
    → Okay.
  45. 45. You should keep learning.
    → I will.
  46. 46. I can speak better now.
    → Good progress.
  47. 47. Can I help you?
    → Yes, please.
  48. 48. Could you explain slowly?
    → Sure.
  49. 49. You must try.
    → Okay.
  50. 50. You should never give up.
    → I won’t.

31.4 Worksheet — Practice Modal Verbs

Section 1 — Fill in the Blanks

  1. You ______ study daily. (should)
  2. ______ I come in? (Can)
  3. You ______ follow rules. (must)
  1. should
  2. Can
  3. must

Section 2 — Choose the Correct Modal

  1. (Can / Must) I ask a question?
  2. You (should / could) drink water.
  1. Can
  2. should

Section 3 — Make Sentences

  1. Make a sentence using “can”.
  2. Make a sentence using “should”.
  1. I can speak English.
  2. You should practice daily.

Section 4 — True or False

  1. “Must” shows strong rule. (True / False)
  2. “Could” is used for polite requests. (True / False)
  3. “Can” is never used for permission. (True / False)
  1. True
  2. True
  3. False
Scroll to Top