Forms of Helping Verbs
We use helping verbs (auxiliary verbs) with main verbs. The tables on this page show the forms of all helping verbs.
There are 2 groups of helping verbs:
1. Primary helping verbs
We use primary helping verbs to change the tense or voice of the main verb, and to make questions and negatives. There are only three primary helping verbs: do, have, be. These verbs can also function as main verbs. When we use them as helping verbs, here are the forms that we use: