Question

Sings is auxillary verb or principal verb​

Answer 1

Answer:

All verbs are either auxiliary verbs or main verbs. Auxiliary verbs, also called helping verbs, consist of primary verbs (be, have, do) and modal verbs (can, could, may, might, must, shall, will, etc). ... They change the meaning or time of the action as expressed by the verbs: He does sing. / He is singing. / He has sung.

Answer 2

$\text{Sing/Sings is Principle verb }$ㅤㅤㅤ