Modal Auxiliaries’ Verbs
Supporting Auxiliary
Should
Must
Could
Auxiliaries
Will
Primordial Auxiliaries
May
Can
Expresses necessity or a strong suggestion.
This is a verb that talks about the future, prediction, question or concern.
It is used more when giving advice, making or asking for suggestions, opinions and actions.
Expresses ability or possibility.
They are used together with a main verb to express tense, mood or voice
It is used with simple tenses to form negative sentences and questions. (Do)
Modify the meaning of the main verb to transmit information about the speaker's attitude.
It is the past form of "can", but it is also used to express possibility.
They are are used to construct compound tenses. (Be - Have)
This is a variation of the verb "can". If you want to ask permission, this is a good way.
