CBSE NCERT Class 4 English Grammar Chapter 13 Modals in PDF. - Free Printable

Let's solve the given English grammar exercise step by step.

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C. Fill in the correct modals:

We need to choose the correct modal verb from the options provided in brackets.

1. If I were you, I ________ (can, could) do it easily.
→ This is a conditional sentence (second conditional), so we use could.
✔ could

2. ________ (Ought, Could) you post this letter?
→ "Could" is used for polite requests; "ought" is more formal and less common in questions like this.
✔ Could

3. He ________ (can, ought) type the letter.
→ "Can" indicates ability; "ought" implies duty or moral obligation. Here, it’s about ability.
✔ can

4. ________ (Could, Might) I smoke in the room?
→ Both are possible, but "Could" is more commonly used for polite permission requests.
✔ Could

5. ________ (Can, Might) you help me in the work?
→ "Can" is direct; "Might" is more polite and uncertain. For a request, "Could" would be better, but here only "Can" and "Might" are options.
→ "Might" is more polite.
✔ Might

6. You ________ (must, may) read daily to pass the exam.
→ "Must" expresses necessity/obligation. "May" suggests possibility. The sentence implies a requirement.
✔ must

7. ________ (Have, May) I park this car in the garage?
→ "May" is used for asking permission. "Have" doesn't fit here.
✔ May

8. You ________ (must, can) look after your parents.
→ This is a moral or social obligation. "Must" is stronger and fits better than "can".
✔ must

9. ________ (May, Could) god help you!
→ This is a blessing or wish. "May" is used for wishes.
✔ May

10. She ________ (can, may) speak English well.
→ "Can" indicates ability. "May" would suggest possibility, but the sentence is stating a fact about her skill.
✔ can

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D. Multiple Choice Questions: Tick (√) the correct option

1. A modal expresses the _________ of a verb.
(a) degree
(b) time
(c) number
(d) mode

→ Modals express mode — such as possibility, permission, obligation, etc.
✔ (d) mode

2. Modals do not indicate any _________.
(a) mode
(b) express
(c) action
(d) altitude

→ Modals do indicate mode, expression, and sometimes action (like ability). But altitude is irrelevant.
✔ (d) altitude

3. It is used in condition of compulsion.
(a) must
(b) can
(c) may
(d) ought to

→ "Must" expresses compulsion or necessity.
✔ (a) must

4. Could is the ________ form of can.
(a) present
(b) past
(c) future
(d) none

→ "Could" is the past tense form of "can".
✔ (b) past

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✔ Final Answers:

#### C. Fill in the blanks:
1. could
2. Could
3. can
4. Could
5. Might
6. must
7. May
8. must
9. May
10. can

#### D. Multiple Choice:
1. (d) mode
2. (d) altitude
3. (a) must
4. (b) past

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📝 Explanation Summary:

- Modals like *can, could, may, might, must, ought to* express modality — which includes possibility, permission, obligation, ability, etc.
- "Could" is often used in hypotheticals or polite requests, while "can" is for general ability.
- "Must" shows strong obligation.
- "May" is used for permission or wishes.
- "Could" = past form of "can".

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