Modals of Possibility and Certainty

What is the modal verb used to express possibility in the present?

• The modal verb used to express possibility in the present is 'can'.

• will

• must

• should

Provide an example sentence using a modal verb to express certainty in the future.

• I can attend the meeting tomorrow.

• I should attend the meeting tomorrow.

• I will definitely attend the meeting tomorrow.

• I might attend the meeting tomorrow.

Explain the difference between 'must' and 'might' when expressing certainty.

• Must and might are interchangeable in expressing certainty

• Must and might have the same meaning when expressing certainty

• Must indicates uncertainty, while might indicates strong certainty

• The difference between 'must' and 'might' when expressing certainty is that 'must' indicates strong certainty, while 'might' indicates possibility or uncertainty.

Fill in the blank: 'She _____ be at home by now.' (use a modal verb of possibility)

• can

• will

• should

• might

What is the modal verb used to express strong possibility?

• The modal verb used to express strong possibility is 'could'.

• can

• might

• should

Rewrite the following sentence using a modal verb of certainty: 'It is certain that he will arrive on time.'

• He will definitely arrive on time.

• He could arrive on time.

• He might arrive on time.

• He may arrive on time.

Explain the difference between 'could' and 'may' when expressing possibility.

• Both 'could' and 'may' are modal verbs used to express possibility, but 'could' suggests a higher degree of possibility than 'may'. 'Could' indicates a more hypothetical or uncertain possibility, while 'may' suggests a more likely or real possibility.

• 'Could' indicates a more likely possibility than 'may'

• 'May' suggests a more hypothetical or uncertain possibility than 'could'

• Both 'could' and 'may' are used to express impossibility

Fill in the blank: 'He _____ have forgotten his keys.' (use a modal verb of certainty)

• must

• should

• can't

• might