MODALS AND SEMI-MODALS
What are Modals?
Modals are helping (auxiliary) verbs that express ability, possibility, permission, obligation, advice, necessity, or certainty.
Main Features of Modals
– They are always followed by the base form (V1) of the verb.
– They do not change according to the subject.
– They do not take -s, -ed, or -ing forms.
– Questions and negatives are formed without using do/does/did.
Structure:
Subject + Modal + V1 + Object
Example:
– She can swim.
– We must obey traffic rules.
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List of Modals
– Can
– Could
– May
– Might
– Shall
– Should
– Will
– Would
– Must
– Ought to
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Uses of Modals with Examples
1. CAN
Uses
– Ability
– Permission (informal)
– Possibility
Examples
– I can speak English.
– Can I borrow your pen?
– It can get very hot in May.
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2. COULD
Uses
– Past ability
– Polite request
– Possibility
Examples
– She could ride a bicycle at the age of six.
– Could you help me?
– It could rain today.
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3. MAY
Uses
– Permission (formal)
– Possibility
– Wishes
Examples
– May I come in?
– It may snow tonight.
– May God bless you.
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4. MIGHT
Uses
– Slight possibility
Examples
– We might visit Delhi next month.
– He might be at home.
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5. SHALL
Uses
– Offers
– Suggestions
– Future (traditional)
Examples
– Shall I open the window?
– Shall we start the meeting?
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6. SHOULD
Uses
– Advice
– Duty
– Expectation
Examples
– You should drink more water.
– Students should respect teachers.
– The train should arrive soon.
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7. WILL
Uses
– Future actions
– Promises
– Willingness
Examples
– I will call you tomorrow.
– She will help you.
– I will never lie.
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8. WOULD
Uses
– Polite requests
– Preferences
– Habit in the past
Examples
– Would you like some tea?
– I would rather stay home.
– My grandfather would tell us stories.
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9. MUST
Uses
– Strong obligation
– Necessity
– Strong certainty
Examples
– You must wear a helmet.
– We must finish our homework.
– She must be tired.
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10. OUGHT TO
Uses
– Moral duty
– Advice
Examples
– We ought to help the poor.
– You ought to apologize.
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SEMI-MODALS
What are Semi-Modals?
Semi-modals are verbs that behave partly like main verbs and partly like modal verbs. They usually need to before the main verb.
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1. HAVE TO
Use
Necessity because of rules or circumstances.
Structure
Subject + have/has/had to + V1
Examples
– I have to wear a school uniform.
– She has to finish her work.
– They had to leave early.
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2. HAS TO
Example
– He has to study every day.
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3. HAD TO
Example
– We had to cancel the trip.
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4. NEED TO
Use
Necessity
Examples
– You need to revise your lessons.
– I need to buy groceries.
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5. DARE TO
Use
Courage
Examples
– She dared to speak the truth.
– He didn’t dare to jump.
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6. USED TO
Use
Past habits or past states
Examples
– I used to play cricket every evening.
– My grandfather used to live in Mumbai.
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7. BE ABLE TO
Use
Ability (used in different tenses)
Examples
– She is able to solve the problem.
– We were able to reach on time.
– They will be able to attend tomorrow.
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8. BE GOING TO
Use
Future plans or predictions
Examples
– I am going to visit Jaipur.
– It is going to rain.
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Difference Between MUST and HAVE TO
MUST| HAVE TO
Personal obligation| External rule or necessity
I must finish my homework.| I have to wear a uniform.
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Difference Between CAN and MAY
CAN| MAY
Ability/Informal permission| Formal permission
I can swim.| May I come in?
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Difference Between SHOULD and OUGHT TO
SHOULD| OUGHT TO
Advice| Moral duty or advice
You should exercise.| We ought to help others.
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Difference Between WILL and GOING TO
WILL| GOING TO
Instant decision| Planned action
I’ll answer the phone.| I am going to visit Delhi next week.
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Common Errors
❌ He can swims.
✅ He can swim.
❌ She must goes.
✅ She must go.
❌ I have to went.
✅ I have to go.
❌ He should studies.
✅ He should study.
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Quick Revision Table
Modal/Semi-Modal| Main Use| Example
Can| Ability| I can swim.
Could| Past ability/Request| Could you help me?
May| Permission| May I come in?
Might| Possibility| It might rain.
Shall| Offer/Suggestion| Shall we go?
Should| Advice| You should study.
Will| Future| I will help you.
Would| Polite request| Would you like tea?
Must| Strong obligation| You must obey rules.
Ought to| Moral duty| We ought to help.
Have to| Necessity| I have to work.
Need to| Necessity| You need to sleep.
Used to| Past habit| I used to play.
Dare to| Courage| She dared to speak.
Be able to| Ability| He is able to solve it.
Be going to| Future plan| We are going to travel.
MODALS & SEMI-MODALS WORKSHEET
Part A: Fill in the blanks with the correct modal or semi-modal.
1. You _______ wear your seat belt while driving.
2. _______ I borrow your notebook?
3. She _______ speak three languages fluently.
4. We _______ reach the station before 8 a.m.
5. It _______ rain this evening.
6. Students _______ respect their teachers.
7. I _______ help you if you need me.
8. They _______ finish the project by tomorrow.
9. He _______ play football when he was five years old.
10. We _______ visit our grandparents next Sunday.
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Part B: Choose the correct answer.
1. _______ you help me with this bag?
– a) Must
– b) Could
– c) Shall
2. You _______ smoke in the hospital.
– a) must not
– b) can
– c) may
3. I _______ swim when I was six.
– a) could
– b) can
– c) will
4. _______ I come in, Sir?
– a) Can
– b) May
– c) Will
5. We _______ leave now or we’ll miss the bus.
– a) must
– b) might
– c) would
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Part C: Rewrite the sentences using the word given.
1. It is necessary for me to finish my homework.
(must)
2. It is a good idea to drink plenty of water.
(should)
3. I had the ability to ride a bicycle at the age of six.
(could)
4. We are planning to visit Delhi next month.
(going to)
5. It is possible that she will come today.
(might)
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Part D: Correct the mistakes.
1. He can sings well.
2. She should studies regularly.
3. We have to went home.
4. You must wearing a helmet.
5. They could played cricket.
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ANSWER KEY
Part A
1. must
2. May/Can
3. can
4. have to
5. might / may
6. should
7. will
8. must / have to
9. could
10. are going to
Part B
1. b) Could
2. a) must not
3. a) could
4. b) May
5. a) must
Part C
1. I must finish my homework.
2. You should drink plenty of water.
3. I could ride a bicycle at the age of six.
4. We are going to visit Delhi next month.
5. She might come today.
Part D
1. He can sing well.
2. She should study regularly.
3. We have to go home.
4. You must wear a helmet.
5. They could play cricket.
MODALS & SEMI-MODALS – MIXED PRACTICE WORKSHEET (50 Questions)
A. Fill in the Blanks (1–10)
1. You ________ wear a helmet while riding a bike.
2. ________ I borrow your pen?
3. She ________ speak four languages.
4. It ________ rain this evening.
5. We ________ finish the project by Monday.
6. He ________ play the guitar when he was eight.
7. Students ________ respect their teachers.
8. I ________ help you tomorrow.
9. They ________ visit us next week.
10. You ________ eat too much junk food.
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B. Choose the Correct Answer (11–20)
11. Which modal shows ability?
a) Must
b) Can
c) Shall
12. Which modal expresses advice?
a) Should
b) Might
c) Will
13. Which modal is used for strong obligation?
a) Must
b) Could
c) May
14. Which sentence is correct?
a) She can sings.
b) She can sing.
c) She can singing.
15. Which modal is used for formal permission?
a) Can
b) May
c) Will
16. “It ________ rain tomorrow.”
a) should
b) might
c) must
17. “We ________ obey traffic rules.”
a) must
b) could
c) would
18. Which semi-modal shows future plan?
a) Be going to
b) Used to
c) Dare to
19. Which semi-modal shows past habit?
a) Need to
b) Used to
c) Have to
20. Which sentence is correct?
a) He must goes.
b) He must go.
c) He must going.
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C. Rewrite Using the Word Given (21–30)
21. It is necessary to wear a seat belt. (must)
22. It is a good idea to revise every day. (should)
23. I had the ability to swim at the age of five. (could)
24. We have planned a picnic tomorrow. (going to)
25. It is possible that she will come. (might)
26. It is necessary for me to complete this work. (have to)
27. I do not have the courage to speak before a crowd. (dare)
28. He had a habit of getting up early. (used to)
29. She has the ability to solve the puzzle. (be able to)
30. Please help me. (would)
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D. Find and Correct the Errors (31–40)
31. He can writes well.
32. She should studies harder.
33. We have to went home.
34. You must wearing a mask.
35. They could played football.
36. May I comes in?
37. He will goes tomorrow.
38. She ought help her parents.
39. I am going visit Delhi.
40. They need to completed the work.
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E. Identify the Function of the Modal (41–50)
Write whether the modal expresses Ability, Permission, Advice, Obligation, Possibility, Request, Future, Past Ability, Habit, or Necessity.
41. Can you help me?
42. You should eat healthy food.
43. He must wear a uniform.
44. She can swim very well.
45. It may rain tonight.
46. We will meet tomorrow.
47. I could run very fast as a child.
48. I used to play chess every evening.
49. We have to submit the project today.
50. Would you open the window, please?
