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Modal verbs por Mind Map: Modal verbs

1. Prohibition

1.1. musn't

1.2. to be prohibitted

2. Posibility

2.1. migth

2.2. may

2.3. could

3. Obligation

3.1. must

3.2. have to

3.3. be obliged to

4. Necessity

4.1. needn't

4.2. need

5. Ability

5.1. can

5.2. be able to

6. Permisson

6.1. can

6.2. be allowed to

6.3. may

7. Advice

7.1. should

7.2. ought to

8. Absense of obligation

8.1. Needn't

8.2. Don't have to