Helping verbs, also known as auxiliary verbs, are used in combination with main verbs to express shades of meaning and time. They "help" the main verb by adding extra information about the action or state of being.
Common helping verbs include: am, is, are, was, were, be, being, been, have, has, had, do, does, did, can, could, shall, should, will, would, may, might, must.
To identify a helping verb, look for a verb that is combined with another verb to form a complete verb phrase. For example: She is singing beautifully.
Identify the helping verbs in the following sentences: