auxiliary verb
1. 助动词：2) 根据其在句中的功能,动词可分为四类,分别是:实义动词(Notional Verb) ,系动词(Link Verb) , 助动词(Auxiliary Verb) ,情态动词(Modal Verb) . 说明:有些情况下,有些动词是兼类词,例如: We are having a meeting.我们正在开会.
2. 助动词[吕：Autosegmental Phonology 自分音系理論[陶] | auxiliary verb 助動詞[呂240] | Baby Talk娃娃腔 [陶]
noun
1. 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