Verbos Modales/Semimodales Ingles

MODALS AND SEMI-MODALS



CAN MAY MUST SHOULD OUGHT TO WILL HAVE TO
COULD MIGHT WOULD


1. CHARACTERISTICS.
1. All modals except for ought are followed by the base form ofa verb. Ought is followed by a to-infinitive.
People may be watching.
You ought to be doing your homework.

2. Modals have only one form. There is no –s form for the 3rd personsingular of the present tense, no -ing and -ed forms.
I’m sure he can do it.

3. To make a negative you put a negative word immediately after the modal.
You must not worry.
I cannever remember his name.

4. To make a question, you put the modal in front of the subject.
Could you give me an example?


2. USES.

OBLIGATION. MUST, HAVE TO, MUSTN’T, NEEDN’T
Must (used for obligations we feel ourselves.
I must get my hair cut.
Have to ( Used for obligations imposed on us by others or by a law or rule.
Children have to go to school until they aresixteen.
Have to and must are sometimes interchangeable. “Have to” is used more often than “must.”
Mustn’t ( indicates negative obligation, that is to say, prohibition.
You mustn’t steal otherpeople’s things.
Don’t have to ( indicates absence of obligation.
He’s rich and he doesn’t have to go to work.
Needn’t ( indicates that something is not necessary, i.e. lack of obligation. Ingeneral statements we prefer “don’t have to.”
It isn’t cold. You needn’t wear a coat.

|+ |0 |-|
|MUST / HAVE TO / NEED TO |NEEDN’T |MUST NOT|


ADVICE SHOULD, OUGHT TO
Should and ought to express mild obligation or advice.
You work too hard. You should rest more.
You ought to be more careful with your money.

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