MODAL VERBS

1. Prohibition

1.1. musn't

2. Absence of obligation

2.1. Don´t have to

2.2. needn't

3. Necessity

3.1. Need

4. Deduction

4.1. 99%

4.1.1. Must

4.1.2. Can't

4.1.3. Must

4.1.4. Can't

4.1.5. Must

4.1.6. Can't

4.2. 50%

5. Obligation

5.1. must

5.2. have to

6. Pattern: Modal verb+infinitive

7. Pattern: Modal ver+infinitive

8. Advice

8.1. Should

8.2. Ought to

9. Possibility

9.1. Could

9.2. Might

9.3. May

10. Ability

10.1. Be Able to

10.2. Can

11. Permission

11.1. Can

11.2. Be allowed to

11.3. May