it's a good idea to memorize the helping verbs. If you haven’t memorized them, take a few minutes to learn them.

Group 1: is, am, are, was, were (linking or state of being verbs when used alone)

Group 2: be, being, been (show action or state of being)

Group 3: has, have, had (show action when used alone)

Group 4: do, does, did (show action when used alone)

Group 5: shall, will, should, would (cannot be used alone)

Group 6: may, might, must, can, could (cannot be used alone)

Parts of Speech Rubric