Download - Modals have to must should
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FORM USES
HAVE TO - MUST- SHOULD
Esther Martínez
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- Modal verbs are followed by an bare INFINITIVE.
You must go to the doctor.
- We use “not” to make them negative.
She shouldn´t leave now.- We use subject-verb inversion in the
interrogative.
Do I have to go to school today?
LET´S RECAP: FORM
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We use “HAVE TO” and “MUST” to talk about obligation.
We have to go.
We don´t have to go.
Do we have to go?
HAVE TO and MUST
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We use “MUSTN´T” to express prohibition.
You mustn´t use your phone at school.
MUSTN´T
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We use “SHOULD” to give suggestions and advice.
You should go to the doctor.
SHOULD