A helping verb, also known as an auxiliary verb, is a verb that combines with the main verb in a sentence to convey additional information about the action or state being described.
Helping verbs assist in forming verb tenses, moods, voices, and aspects. Common helping verbs in English include “have,” “be,” and “do.”
For instance, in the sentence “She is studying,” “is” is the helping verb that indicates the present continuous tense. Helping verbs play a crucial role in adding nuance and precision to verb usage, enabling the expression of complex grammatical structures and meanings.