A verb that combines with another verb in a verb phrase to help form tense, mood, voice, or condition of the verb it combines with. (wordnetweb princeton)
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Anonymous"what are the qualities of auxiliary verbs"Your question is far too broad to be dealt with here as there are so many auxiliary verbs and they are vastly different in their grammatical behaviour. Be is an auxiliary in the continuous tenses and the passive voice, have is an auxiliary in the