Modal Verbs: Must and Might

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Questions and Answers

Which sentence correctly expresses a strong obligation using 'must'?

I must finish this report by tomorrow. (correct)
I must finishing this report by tomorrow.
I must to finish this report by tomorrow.
I must finished this report by tomorrow.

In which sentence is 'must' used to indicate a logical deduction or strong belief?

He must have a key; he is knocking on the door. (correct)
She must go to the doctor; she has a slight cough.
They must buy groceries; they are planning a party.
We must visit the museum; it is highly recommended.

Choose the sentence where 'might' is used correctly to express a possibility.

It might rain later, so take an umbrella. (correct)
It might raining later, so take an umbrella.
It might to rain later, so take an umbrella.
It might rains later, so take an umbrella.

Which situation is best described using 'might'?

A possible chance of seeing a rare bird. (D) Signup and view all the answers

If you see dark clouds gathering, what is the most appropriate sentence to use 'might'?

It might rain later. (B) Signup and view all the answers

Complete the sentence with the correct modal verb: 'Students ______ submit their assignments on time.'

must (A) Signup and view all the answers

Which sentence expresses the weakest level of possibility?

I might go to the party if I finish my work. (A) Signup and view all the answers

In which situation would 'must' be the most appropriate choice?

Stating a legal requirement. (B) Signup and view all the answers

Choose the sentence where 'must' implies a strong recommendation or advice.

You must try this new restaurant; it's amazing! (D) Signup and view all the answers

Select the sentence that correctly uses 'might' to express a tentative plan.

We might visit our grandparents this weekend. (A) Signup and view all the answers

What is the difference between “must” and “might”?

“Must” expresses strong certainty, while “might” expresses possibility. (B) Signup and view all the answers

Which sentence is correct?

You must be careful when walking alone at night. (B) Signup and view all the answers

Choose the correct word to complete the sentence: “The lights are on in his office. He ___ still be working.”

must (B) Signup and view all the answers

Correct the mistake in the sentence: She must to be tired after such a long trip.

must be (A) Signup and view all the answers

Flashcards

Must (positive statements)

Expresses obligation or necessity. Indicates a strong belief that something is true or will happen.

Might (positive statements)

Expresses possibility or uncertainty. Suggests that something is likely but not certain.

Must: Practical Example

You ______ submit your application before the deadline.

Might: Practical Example

It ______ rain later; I saw dark clouds.

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Must: Theoretical Question

Which modal verb should you use to express a strong obligation?

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Might: Theoretical Question

Which modal verb should you use to express possibility?

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Study Notes

Modal verbs 'must' and 'might' indicate degrees of certainty or possibility.
They are auxiliary verbs, so they are always used with a main verb.
In positive statements, 'must' indicates a strong belief or logical deduction.
'Might' indicates a possibility, but with less certainty than 'must'.
The basic structure for sentences is: Subject + Modal Verb + Base Form of Verb.

Must

'Must' is used when the speaker is almost sure about something based on evidence.
It expresses a high degree of probability or logical necessity.
Example: "She must be tired; she's been working all day." This expresses a logical deduction based on the information given.
'Must' can also indicate obligation or strong advice, but this is not the focus for positive statements of deduction.

Might

'Might' expresses a weaker possibility or uncertainty.
It indicates that something is possible but not definite.
Example: "It might rain later, so take an umbrella." This suggests that rain is a possibility, but not a certainty.
'Might' implies a lower degree of certainty compared to 'may' or 'could'.

Theoretical Questions

What do modal verbs indicate in a sentence?
Explain the difference in certainty between 'must' and 'might'.
Give an example sentence using 'must' to show a strong belief.
Give an example sentence using 'might' to show a possibility.
What is the basic sentence structure when using 'must' and 'might'?
When would you use 'must' to make a statement?
When would you use 'might' to make a statement?
How does the use of 'must' differ from expressing obligation versus logical deduction?
Which auxiliary verb indicates uncertainty?
Which auxiliary verb indicates a strong belief?

Practical Questions

Complete the sentence using 'must' or 'might': "The lights are off; they _____ be out."
Complete the sentence using 'must' or 'might': "I haven't decided yet, but I _____ go to the party."
Choose the correct modal verb: "He ______ be rich; he drives an expensive car." (must/might)
Choose the correct modal verb: "She ______ be at home; I saw her car in the driveway." (must/might)
John hasn't trained in weeks, so he _____ not win the race. (must/might)
Re-write the following sentence with 'must' to indicate a strong belief: "I'm almost sure that's her sister."
Re-write the following sentence with 'might' to indicate a possibility: "It's possible that I visit New York next year."
Select the sentence that correctly uses the modal verb: a) They must to arrive soon. b) They must arrive soon. c) They must arriving soon.
Choose the sentence that expresses a strong belief: a) She might be a doctor. b) She must be a doctor; she works at the hospital.
Which sentence shows possibility rather than certainty? a) He must be the thief. b) He might be the thief.
Correct the sentence: "I must to go to the store later."
Correct the sentence: "She might to be tired after the flight."
What modal verb is used to say that you are sure of something?
What modal verb to use if you're unsure of something?
What construction do you use with modal verbs?