What is the predicate of sentence Gerry enjoys floating in pool?

The predicate of the sentence "Gerry enjoys floating in the pool" is "enjoys floating in the pool."

The subject is "Gerry," which is who the sentence is about. The predicate is everything else in the sentence, which describes what the subject does. In this case, the predicate is "enjoys floating in the pool," which describes how Gerry likes to spend his time.