Identify the gerund phrase in the following sentence.

Caroline loves reading about history; she hopes to visit some sites she read about.

Gerund phrase in the given sentence is 'reading about history'.

Explanation:

A gerund are words formed with a "verb" ending with 'ing' but they act as nouns. For example: swimming, reading, drinking etc can be used as "gerunds".

A "gerund phrase" will begin with gerund and include other objects and modifiers. The entire gerund phrase acts as noun in the sentence. For example, in the sentence, "I recommend reading books at home", gerund phrase is 'reading books at home'.

In the given sentence, gerund phrase 'reading about history', begins with gerund - 'read' + 'ing'. It is acting as direct object here. If you ask a question, what Caroline loves? Answer is 'reading about history'.