Not an adverb clause; rather, it’s a noun clause functioning as direct object of the verb “knew.”

Sent from my iPhone

> On Nov 30, 2023, at 11:54 AM, Scott Woods <[log in to unmask]> wrote:
> 
> 
> Dear List,
> 
> What is going on in the bold section of the adverb clause below? Specifically, how are the two clauses related to each other? 
> 
> Also, how would you explain the "would it?" part of the sentence?
> 
> If we knew what it was we were doing, it would not be called research, would it?  (attributed to Albert Einstein)
> 
> Thanks,
> 
> Scott Woods
> 
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