Question

List of helping verbs

Answer 1

there are twenty three helping verbs:
Am, is, are, was and were, being, been, and be, Have, has, had, do, does, did, will, would, shall and should. There are five morehelping verbs: may, might, must, can, could! 

Answer 2

Am, is, are, was, were, being, been, be, had, do, does, did, will, would, shall , should,may, might, must, can, could