Question

will you do it for me please identify the modal auxiliary verb and state it's function​

Answer 1

Answer:

The modal verb in the given sentence is:

MUST

The use of this verb is:

To express something that is very much necessary to do.

Here, it is necessary for 'I' to tell the truth

I hope this helps!

Answer 2

modal auxiliary verbs are used to express modality. they are used to express feelings like probability, ability, permission or obligation.

eg- It might rain. (probability)

I can do this. (ability)

You may come in. (permission)

I must do this. (obligation)