Modals

Q2. “Can” only expresses permission and never ability.

Q3. “Would” can be used in polite requests.

Q4. “Could” can express past ability.

Q5. A modal is normally followed by the base form of a verb.

Q6. “Must not” can express prohibition.

Q7. “May” is never used for permission.

Q8. A modal is followed by the base form of a verb.

Q9. “Must” can express obligation.

Q10. “Ought to” is followed by the base verb with “to”.