Question

Which sentence includes a gerund?
Swimming in the gulf is Finn's favorite summer activity.
Swimming in the gulf is Finn's favorite summer activity.

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.

While swimming at the beach, Harper found a starfish.

While swimming at the beach, Harper found a starfish.

The sentence that includes a gerund is: "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."

To identify a gerund, it's important to understand what a gerund is. A gerund is a verb form that functions as a noun and ends in "-ing". Looking at the options given, we can see that "swimming" is the verb form ending in "-ing" that functions as a noun in the sentence.

To arrive at this answer independently, you can follow these steps:
1. Read each sentence carefully.
2. Identify any verb forms that end in "-ing".
3. Determine if the verb form ending in "-ing" is functioning as a noun in the sentence.
4. If it is functioning as a noun, then it is a gerund. If not, it is a different verb form such as a present participle or a progressive verb form.