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Express Ability, Obligations and Possibility


daniel polania

on 26 January 2012

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Transcript of Express Ability, Obligations and Possibility

Express ability, oblogations and possibility The modal verbs are different kind of verbs,
because they have and especific characteristics that express: obligation,
permission, possibilty....etc EXPRESS HABILITY
We use 'can' and 'could' to talk about a skill or ability.

For example:
She can speak six languages.
My grandfather could play golf very well
I can't drive OBLIGATION
We can use verbs such as 'must' or 'should' to say when something is necessary or unnecessary, or to give advice.

For example:
Children must do their homework.
We have to wear a uniform at work.
You should stop smoking. POSSIBILITY
There are several modal verbs used to
show possibility. They are Might, May, Could, and Must. All of these are different ways to say maybe. For example:

I may eat dinner at 7:00pm.
She might work late tonight.
They must be tired.
We can use verbs such as 'can', 'could' and 'may' to ask for and give permission. We also use modal verbs to say something is not allowed.

For example:
Could I leave early today, please?
You may not use the car tonight.
Can we swim in the lake? HABITS
We can use 'will' and 'would' to talk about habits or things we usually do, or did in the past.

For example:
When I lived in Italy, we would often eat in the restaurant next to my flat.
John will always be late! PERFECT MODALS: Made reference to past,
express conclutions or supositions.
modal+ have + participle Must have + participle:
Sheila was absent yesterday. She must have been ill.
Could have + participle:
He could have helped us, but he came too late.
May / Might have + participle:
Call her again. She may / might not have heard you the first time.
should / ought to have + participle:
She looks worse. She should / ought to have seen a doctor last week.

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