Final answer:
The main verb in the sentence 'Do you know the new director of the accounting office?' is 'know'. It's the primary action word that describes what the subject of the sentence is doing.
Step-by-step explanation:
In the given sentence ---'Do you know the new director of the accounting office?'--- the main verb is 'know'. In English grammar, a main verb is the primary action word in a sentence that describes what the subject is doing. In this context, the verb 'know' describes the action of the subject (which is 'you'). This verb is the chief one expressing the action or state of being in the sentence.
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