Transcript modals (can

MODAL VERBS
can / can’t
have to / don’t have to
MODAL VERBS: can
Subject Modal verb
I
you
he
she
it
we
you
they
Main verb
go
can
Phrase
to sleep.
drink
some water.
eat
some food.
do
some exercise.
Use the basic form of the main
verbs after the modal verbs.
MODAL VERBS: can
Statement
Mike
can
whistle
Negation
Mike
cannot
can’t
whistle
Question
Can
Mike
whistle ?
MODAL VERBS: can
CAN is used to indicate the possession of an ABILITY.
e.g. He can swim.
(He knows how to swim)
MODAL VERBS: can
CAN is used to indicate a present or future GENERAL
POSSIBILITY.
e.g. You can’t fly to the U.S.A. from Girona.
(It is not possible to fly to the U.S.A. because
there are regular flights from Girona)
MODAL VERBS: can
CAN are also used to ask for & give PERMISSION.
e.g. Can I speak to the patient just a few
minutes?
No, you can’t
(You ask the doctor if he lets you
speak to the patient)
MODAL VERBS: have to
Subject Modal verb
I , you
we, they
he, she
it
Main verb
go
have to
has to
Phrase
to sleep.
drink
some water.
eat
some food.
do
some exercise.
Use the basic form of the main
verbs after the modal verbs.
MODAL VERBS: have to
Statement
Negation
Question
You
Mike
You/Mike
have to
has to
had to
study
You
Mike
You/Mike
don’t have to
doesn’t have to
didn’t have to
study
have to
study ?
Do
you
Does Mike
Did you/Mike
MODAL VERBS: have to
In the present we use MUST and HAVE TO to say
that something is NECESSARY or OBLIGATORY.
e.g. You must be home by 9 p.m.
I have to work on Saturday morning.
MODAL VERBS: have to
When referring to the past, we use only HAD TO.
e.g. Danny had to go to work yesterday.
MODAL VERBS: have to
In the negative they have different uses.
MUSTN’T: prohibition.
e.g. You mustn’t take photos.
(It is prohibited to take photos)
DON’T HAVE TO: absence of necessity.
e.g. You don’t have to wear a
white coat.
(You don’t need to wear a coat)