| Modal Verb | Function | Example |
|---|---|---|
| Can | Ability, permission, offers | Almaz can swim. |
| Could | Past ability, requests, possibility | Zeberga could swim when he was four. |
| May / Might | Permission, possibility | May I borrow your dictionary? |
| Must | Obligation, logical deduction | Dogs must be kept on a lead. |
| Mustn't | Prohibition | You mustn't tell Nisredin. |
| Should / Ought to | Advice, logical deduction | You should do your homework every day. |
| Shall / Will | Future, suggestions, offers | Shall we begin the meeting tomorrow? |
When you use it
Use modal verbs before base verbs to express ability, permission, obligation, advice, or possibility.
Watch out
Do not confuse mustn't (prohibition) with don't have to (lack of necessity).
Drafted from Grade 9 English, pages 60-85, then checked twice before it went up

