* Verb Phrase: "is"
* Participle: "napping" (present participle)
* Gerund: There isn't a gerund in this sentence.
Explanation:
* Verb Phrase: The verb phrase is the main verb of the sentence along with any helping verbs. In this case, "is" is the main verb.
* Participle: A participle is a verb form that acts as an adjective. In this sentence, "napping" is the present participle of the verb "to nap." It modifies the noun "activity" by describing what kind of activity it is.
* Gerund: A gerund is a verb form ending in "-ing" that functions as a noun. While "napping" ends in "-ing," it's not acting as a noun in this sentence. It's acting as an adjective.
Example of a sentence with a gerund:
"Napping is my favorite activity." Here, "napping" is the gerund and it's the subject of the sentence.