What are modal verbs?
All of the above
Verbs that add a particular feeling to the sentence
Verbs that have more than one meaning
A special kind of auxiliary verbs
This modal verb expresses an ability
might
must
can
should
To show obligation, these modal verbs are used
should, ought to
have to, must
must not, don't have to
can, may
When we think that something is logical and true, we use the word
might
can
must
can't
Prohibition is when you are not allowed to do something. This is often shown using the words
must not
should not
ought not
could not
What do modal verbs NOT express?
Obligation
Factual information
Permission
Advice
I want to go to the pool with you, but I can't swim". This sentence expresses:
Ability
Possibility
Obligation
Lack of ability
My friend can't go to see the film with me; she has to study for the final exam.
Prohibition
Advice
Truth
Obligation
You must not run with scissors!
Lack of obligation
Opinion
Prohibition
Suggestion
The weatherman said there's a chance of showers tomorrow.
Possibility
Ability
Advice
Truth
My friends just ran in a marathon. They must be tired.
Possibility
Opinion
Certainty
Suggestion
I _______________ go shopping with you tomorrow evening; I've got a match.
cannot
can
don't have to
should
Sorry, I______ come to your birthday party because I had a terrible headache.
could
couldn't
mustn't
wasn't able to
In the halls of residence, you ____________ wash your own clothes.
have to
mustn't
must
were able to
You____________ take vitamin pills if you eat enough fresh fruit and vegetables.
don't have to
cannot
have to
must
Passengers____________ smoke on planes.
can
are able to
are allowed to
mustn't
