In which sentence is the underlined word a gerund?

A) We are all trying harder to improve our technique.

B) The swimming pool looked inviting on such a hot day.

C) Finding the lost bracelet proved to be a difficult task.

The answer is letter C, Finding the lost bracelet proved to be a difficult task.

Explanation:

A gerund is a part of speech which looks like a verb, but is actually a noun. It can be the subject of a sentence, an object of the verb, an object of a preposition or a subject complement. This is formed by adding "ing" to a verb.

dance + ing = dancing swim + ing = swimming cook + ing = cooking

In the sentence above, "Finding the lost bracelet proved to be a difficult task." The gerund is "Finding" and it is acting as a subject of the sentence.

Remember that gerunds act singular, thus the verb that is being used to accompany them is also singular.

Swimming is my favorite sport. (the gerund is acting as a subject) I like singing in Japanese. (the gerund is acting as an object of a sentence) My boyfriend's favorite hobby is jogging. (the gerund is acting as a subject complement)