Question

in this sentence, the bold word or phrase below is... the kangaroo in sheldon planktons backyard enjoys sleeping underneath his bedroom window. a verb not a verb

Explanation:

The word "sleeping" is the present participle form of the verb "sleep". In the sentence, "enjoys" is the main verb, and "sleeping" functions as a gerund (a verb - noun form) but is still derived from a verb and shows an action. So it is a verb (in its participle form, used as a gerund here but still a verb - related form).

Answer:

A. Verb