can
What does the modal verb “can” express?
Ability or permission.
When are “may” and “might” used
To express possibility.
What does “must” express?
Strong necessity or obligation.
When do we use “should”?
For advice or recommendation.
Which modals can be used for polite requests?
Could, would, can, may
Complete the sentence
I ___ swim when I was 5.
Could
What does “May I open the window?” express?
Asking for permission
Difference between “must” and “have to”?
Must” is personal obligation; “have to” is external (rules/laws).
Difference between “should” and “ought to”?
They are similar, but “ought to” is more formal.
I ___ have studied harder. (regret)
Should
What is the meaning of “Could you help me?”
Polite request.
What’s the difference in likelihood between “may” and “might”?
“May” suggests higher possibility; “might” is weaker
Difference between “mustn’t” and “don’t have to”?
“Mustn’t” means prohibition; “don’t have to” means no obligation.
What does “You shouldn’t eat too much sugar” mean?
Negative advice.
You ___ be tired after the trip. (guess)
Must