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First Certificate in English - Grammar. Modal Verbs (1)
Jak powiedział George Bernard Shaw: "Those who can, do; those who can not, teach." Dziś zatem przyjrzyjmy się bliżej czasownikom modalnym.
Grammar
There are ten modal verbs:
can could shall should may
might will would must ought to
- The third person singular does not take s.
- We use a bare infinitive (a verb without to) after all modal verbs except ought which we follow with a to-infinitive:
You should go home early. You ought to go home early.
- We form questions by inverting the modal verb and subject:
Can you swim? Must I go to bed now?
- We form negatives by adding not or n't. We do not use do:
I cannot swim. You mustn't tell lies.
- We often use modal verbs in tag questions and short answers:
You can drive, can't you? Yes, I can. / No, I can't.
- Modals do not exist in all tenses. There is normally no Past Simple form:
The train might be in the station. (= present)
The train might arrive late. (= future)
- There are Perfect forms of modal verbs:
You could have done better.
- When a tense of a modal verb does not exist, we use ...
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