Consider this sentence: The drink that is on the floor that is about to spill does contain coffee. What is the auxiliary verb this sentence?
A) to spill
B) is on
C) does
D) is about

Question

Quizplus · Accepted Answer

The auxiliary verb in this sentence is "does," as it functions to add emphasis to the fact that the drink does contain coffee. The other phrases ("to spill," "is on," "is about") are prepositions or infinitive verbs, but they do not serve as auxiliary verbs in this sentence.

Consider This Sentence: the Drink That Is on the Floor