The sentence that includes a gerund is:
Swimming in the gulf is Finn's favorite summer activity.
In this sentence, "swimming" is the gerund, functioning as a noun.
Responses
Nash has been swimming since he was five years old.
Nash has been swimming since he was five years old.
Graham learned to dive at the community swimming pool.
Graham learned to dive at the community swimming pool.
Swimming in the gulf is Finn's favorite summer activity.
Swimming in the gulf is Finn's favorite summer activity.
While swimming at the beach, Harper found a starfish.
The sentence that includes a gerund is:
Swimming in the gulf is Finn's favorite summer activity.
In this sentence, "swimming" is the gerund, functioning as a noun.