Modal verbs

 

Modal Usage Example
can ability, permission She can swim. / Can I go out?
could past ability, polite request He could sing well. / Could you help me?
may possibility, permission It may rain. / May I come in?
might lesser possibility We might be late.
must strong obligation, certainty You must do your homework.
shall future (formal), offer Shall we begin? / I shall return.
should advice, expectation You should eat healthy food.
will future, willingness I will call you tomorrow.
would polite request, imaginary situation Would you like tea? / I would travel if I had money.
ought to moral duty You ought to respect elders.
need to necessity You need to study harder.
used to past habit He used to play football.

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