Is are considered a helping verb?

Answer 1

Yes,

Here are some other helping verbs:

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

Answer 2

Yes, "is" is considered a helping verb when used in combination with another verb to form verb phrases in English, such as in "he is running."