what are the auxilary verbs and its use in conversation of english?

Answer 1

There are quite a few auxhilliary verbs and they are sometimes called helping verbs. That is what they do. They go with another verb, forming a compound verb (2 or more verbs used together to describe one action or condition). Eg will (aux) go (main). Note that the auxhilliary verb appears first.

The auxhilliary verb gives the tense, eg do/did. It also has to agree with the person, ie if the auxhilliary verb ends with "s", it must be present and be referring to "he, she, it, or one"

will/ shall -denotes future Will wait, Shall win

will be/shall be - denotes future continuous will be standing shall be going

can- denotes ability/permission can do it, can sit here

would/ should/ could - denotes a condition/requirement.
I would if You should I could if
(They are also the past tense of will/shall /can)

might- possibility You might pass

ought to/ need to- necessity You ought to/need to revise

was/were- past continuous tenses was reading were playing

(They are also used for the past passive voice) he was beaten they were given

In the same way am/are/is is used for continuous tenses and present passive.

do/does/did- to from negatives and questions of main verbs.
do you like? I don't like. does he like? did you like?
The purpose of this auxhilliary is to avoid saying awkward things such as, Went he out? Like you ice cream? I like it not.

Have/has/had -These are used for the perfect tenses
He has gone. I have been. We had arrived before....

I have run out of steam. but I think I have given you the main ones. Hope it helps.