what are the different types of modal auxiliaries and tell their usage in sentence .
Modal verbs: The verbs may, might, can, could, will, would, shall, should, ought and must are called modal verbs. Used before ordinary verbs, these verbs denote permission, probability, necessity, etc. For example:
You should practice more to learn to play piano.
I shall visit the doctor tomorrow.
We ought to submit the final report today.
Auxiliaries: Auxiliaries are the helping verbs that are used with the main verbs to make passive forms, tenses, questions and negatives. Verbs like have, do and be(is, am, are) are auxiliaries. For example:
They are serving the poor and needy.
We have to be present in the meeting tomorrow.
Do you like to watch cricket?