Modals

1. Had Better

1.1. Recommendations/Desperate hope/Warning people

2. Must

2.1. Necessity/Certainty/Strong Recommendation (negative - Prohibition)

3. Should/Ought to

3.1. Advice/suggestions/expectation/strong probability.

4. Have to/Have got to

4.1. Certainty/Necessity/Obligation

5. May

5.1. Possibility/Give or Request Permission

6. Might

6.1. Possibility/Conditionals/Suggestions/Requests

7. Can

7.1. Ability/Opportunity/Requests/Permission/Impossibility/possibility

8. Passive Modals

8.1. Passive Simple

8.2. Passive Modal Perfect

8.3. Passive Modal Continuous

8.4. Passive Modal Perfect Continuous

9. Modal Structure

9.1. Simple Modal

9.2. Continuous Modal

9.3. Perfect Modal

9.4. Perfect Continuous Modal

10. Would

10.1. Past of will/repetition/conditionals

11. Will

11.1. promises/voluntary actions in the future./predictions about the future.

12. Shall

12.1. Future action/predestination/inevitability/suggestions

13. Could

13.1. possibility/past ability/suggestions/requests/conditionals