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Modals in English Grammar

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Questions and Answers

Which modal is appropriate for asking permission in a formal context?

Can

Shall

Must

May (correct)

What does the modal 'mustn’t' indicate?

You are encouraged to do it.

You don't need to do it.

You are forbidden to do it. (correct)

You have permission to do it.

Which of the following sentences correctly uses a modal for speculation?

She might finish her work later. (correct)

He can be at the party right now.

They have to be invited.

You must know the answer.

When can 'must' be used for speculation?

When you feel sure due to logical deduction. Signup and view all the answers

Which of these sentences indicates prohibition using a negative modal?

You can't smoke in here. Signup and view all the answers

What is a use of modals in language?

Expressing certainty Signup and view all the answers

Which modal expresses the strongest obligation?

Must Signup and view all the answers

Which sentence correctly uses a modal for permission?

You can leave early today. Signup and view all the answers

What is the correct form of a past infinitive using a modal?

You might have left early. Signup and view all the answers

Which statement correctly represents a prohibition using modals?

You mustn’t smoke in the building. Signup and view all the answers

In which scenario would 'have to' be correctly used?

You have to study for your exam. Signup and view all the answers

Which of the following best illustrates the use of 'should'?

You should get more sleep. Signup and view all the answers

What does the structure 'don’t have to' indicate?

Absence of obligation. Signup and view all the answers

Study Notes

Modals

Modals are verbs that are used to express obligation, permission, prohibition, speculation and prediction.
They are used with the infinitive form of verbs.
Common modals include: must, have to, should, ought to, can, may, might, could.
Modals can be used in the present, present continuous, and past infinitive forms.

Obligation

Strong obligation is expressed with must and have to.
Must is used when something is necessary, in written rules and instructions, or by those in authority.
Have to is used when an action is necessary due to someone else’s requirement or a rule.

Permission and Prohibition

Can, may, and be allowed to express permission.
Can is used in most situations, while May is only used with “I”.
Negative forms can’t, may not, and mustn’t express prohibition.

Speculation

Modals used for speculation include might, could, and may.
They express a possibility, but with some uncertainty.
Must can also be used if there is a strong sense of certainty based on logic or deduction.

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Description

This quiz covers the various uses of modals in English, including obligation, permission, prohibition, and speculation. Understand how modals function in different contexts and their forms in present and past tenses. Test your knowledge and application of modal verbs.