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what are the Modals ? definition&explanation

what are the Modals ? definition&explanation

what are the Modals ? definition&explanation

Definition1:  Modal auxiliary is the verb that is used with another verb. Ex: can, may, should….; to express possibility, permission etc...
Definition2: Modal auxiliary generally expresses speaker attitudes (way of thinking or behaving). For example: modals can express that a speaker feels something is necessary, advisable, possible, permissible or probable.
The Modal auxiliaries  in English are:
Can, could, had better, may, might, must, ought to, shall, should, will and would.
to express ability
I can speak a little Russian.
to request permission
Can I open the window?
to express possibility
I may be home late.
to request permission
May I sit down, please?
to express obligation
I must go now.
to express strong belief
She must be over 90 years old.
to give advice
You should stop smoking.
to request or offer
Would you like a cup of tea?
in if-sentences
If I were you, I would say sorry.

ð Modal verbs do not take "-s" in the third person( he, she, it )
Correct: She can do it.
Incorrect: She cans do it.
==>The only exception ought to, which is followed by an infinitive            
(to + the simple form for a verb).
==>Polite request with (I) as the subject.
Ex: May I borrow your pen, please?
     Could I borrow your phone, please?
·        May I and could I are used to request permission. They are equally polite.
·        Note: In a polite request , could has a present  or future meaning not a past time
Incorrect: May you pass the salt?
May is used only with I or we in polite request.
==>Can is used informally to request permission
==>Can I is usually considered a little less polite than May I or Could I.
==>Often the response to a polite request is an action, such as a nod or shake of the head, or a simple “uh-huh”.
+ Yes, certainly, yes of course.
ð Polite request with “ You” as the subject :

·        Ex:  Would you pass the salt (please)?
Will you pass the salt (please)?
==>the meaning of would you and will you in a polite request is the same; would you is more comment and is often considered more polite.

. Many modal verbs cannot be used in the past tenses or the future tenses.

  • He will can go with us. Not Correct
  • She musted study very hard. Not Correct

Check your understand : Modal verbs exercise with answers