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Modal Verbs by Mind Map: Modal Verbs

1. Should

1.1. Advice or opinions

1.1.1. (Neutral)

1.2. Example

1.2.1. You should wait in his office

1.2.2. We should stay here at least an hour

1.2.3. He should spend more time on his homework

1.3. Negative advide

1.3.1. She should not take the children with her to Houston

1.3.2. You should not learn at least five new words every day

1.3.3. He should not pay more attention to what the teacher says

1.4. Use

1.4.1. Giving advice

1.4.2. Giving negative advice

1.4.3. Giving your opinion

2. Must

2.1. Obligations

2.1.1. (more pesonal)

2.2. Example

2.2.1. You must call her tomorrow

2.2.2. You must go home

2.2.3. We must stay here at least an hour

2.3. Negative Example

2.3.1. (It's forbidden)

2.3.2. It must not rain this evening

2.3.3. She must not return later

2.3.4. She must not take the children with her to Houston

2.4. Use

2.4.1. Obligations you feel stronly about

2.4.2. Obligations in formal written

2.4.3. Strong advice

2.4.4. Saying something is forbidden

3. Have To

3.1. Obligations

3.1.1. (more situational)

3.2. Example

3.2.1. You have to call her tomorrow

3.2.2. You have to go by plane

3.2.3. We have to write them a letter

3.3. Negative Example

3.3.1. (It is not necessary)

3.3.2. We don’t have to be in the meeting next week

3.3.3. You don’t have to go home

3.3.4. You don’t have to take this package to the post office

3.4. Use

3.4.1. Obligations which depend on circumstance

3.4.2. Most obligations in spoken

3.4.3. Saying something is not necessary

3.4.4. Strong advice