What is the verb in this sentence hook had not been properly baited?

The verb in the sentence "Hook had not been properly baited" is "had been".

Here's why:

* "Had been" is a past perfect tense of the verb "to be". It indicates a completed action that happened before another past action.

* "baited" is the past participle of the verb "to bait", and it acts as an adjective in this sentence, describing the hook.

Let me know if you have any other sentences you'd like to analyze!