Modal Auxiliaries

The modal auxiliary verbs adalah kata-kata seperti can, will, shall, may, might, should, ought to, must, could yang digunakan bersama dengan kata kerja dan ditempatkan di depan subyek.
The Modal auxiliary verb dan kata kerja yang mengikutinya tidak mengalami perubahan untuk orang dan jumlah
The modal auxiliary verb ditempatkan segera sesudah subyek kalimat.

1. Will (Future)
   • They will come here on time
2. Can (ability, permission)
   • He can play the pino. (ability)
   • They can play football here. (Permission)
3. Could (ability in the past, possibility)
   • She could climb when she wa still young. (ability in the past)
   • She could come in a minute. (possibility)
4. Must (conclusion, probability, necessity)
   • He must be twenty years old. (conclusion, probability)
   • You must be hungry. (conclusion, probability)
   • You must study tonight.
5. Might (Possibility)
   • He might get a rise in his salary. (possibility)
6. Should/ought to (obligation, desirability)
   • Students ought to/should study regularly. (obligation)
   • You ought not to/shouldn’t drink and drive. (desirability)
7. May (Pemission, possibility)
   • The children may play here. (permission)
   • He may get a raise. (possibility)

1. have … go down tomorrow.
2. Tom can … play soccer.
3. Could you please … open the window?
4.Would you … speak more slowly, please?
5. We may … go to Argentina for our vacation.
6. Will you please … mail this letter for me?
7. The students must … learn all of the irregular verbs.
8. Sally has … do her history.
9. I think you should … take better care of yourself.
10. I ought … go to the office this afternoon.


Sumber :

http://jaka91.ngeblogs.com/2010/03/08/modal-auxiliaries/