Transcript Diapositiva 1

Modal verb CAN, followed by another verb at base form, used to specify the
skill to do something.
AFFERMATIVE
I/you
He/She/it
We/They
NEGATIVE
I/you
He/She/it
We/They
can sing.
INTERROGATIVE
Can
I/you
he/she/it
We/They
sing?
can’t sing.
CAN used to express:
- ability: be able to do something
I can remember telephone numbers.
- possibility: can do something because situations are advantageous
You can get to my house by bus or train.
For the missing forms, you used to be able to followed by infinite.
Will the baby be able to walk soon?
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Modal verbs CAN, COULD, MAY followed by another verb at base form, used to
ask a permission to do something.
CAN used to ask a permission in informal contests. COULD and MAY used to in
formal contests or when you would be very kind.
Can you borrow me your pen?
Could/May you borrow me your pen, please?
CAN and CAN’T used to talk what you do and what you don’t.
You can park here.
You can’t smoke in this room.
You can used to be allowed to instead of can.
You are allowed to ride a bicycle here.
In formal contests, you can use Do you mind if...?
Do you mind if I sit here?
3
Modal verbs SHOULD and OUGHT TO followed by another verb at base form,
used to ask and give advices and recommendations.
You should be more careful with your homework.
You shouldn’t eat much.
You ought to leave him.
You oughtn’t to drink so much coffee.
Modal verb HAD BETTER followed by another verb at base form, used to give
advices or opinions about a particular situation.
We had better go. It’s really late.
You had better not see him again.
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Modal verb MUST followed by another verb at base form, used to express an
obligation that you have imposed at another person or when you have an
obligation that you have imposed at yourself.
My children must keep your room tidy!
I must finish these exercises.
You can use HAVE TO to express an obligation that another person have
imposed at you or when you speak about an obligation that you don’t feel
necessarily to absolve.
You have to keep your room tidy.
I have to finish these exercises.
You can use have to for the missing forms too.
I would have to finish my homework.
HAVE TO and MUST also used to express a want.
But you can use NEED for the same purpose.
I have to
must
need to
a book.
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