Grammar – Modals

Q2. “Should studying” is the correct form after a modal.

Q3. “Can” can express present ability.

Q4. 'Could' can express ability in the past.

Q5. “Must” can express strong obligation.

Q6. A modal must always be followed by “to”.

Q7. “May” can be used to ask for permission.

Q8. “Might” normally expresses complete certainty.

Q9. A modal verb is normally followed by the base form of the main verb.

Q10. “Could” can be used for polite requests.