500
Name 3 different helping verbs:
What is to be: am, is, are, was, were, be, being, been. These are used in progressive tenses and passive voice verbs. ...
to have: have, has, had. These are used in perfect tenses. ...
to do: do, does, did. These are emphatic verbs. ...
conditionals (also called modal auxiliaries): could, should, would, can, shall, will, may, might, must.