"Pacing" is the gerund or gerund phrase in the sentence.
What are gerund and gerund phrase ?
A verb with a -ing ending that is used as a noun is called a gerund. A gerund plus one or more modifiers, objects, or complements makes up a gerund phrase (s). Almost never do gerunds or gerund phrases need to be punctuated.
How are gerunds and gerund phrases recognized?
A gerund will always be used to begin the sentence.
There will either be a modifier, an object, or both in the gerund phrase.
The entire sentence will serve as a noun.
The word will agree in the singular with the verb.
To learn more about gerunds and gerund phrases click on the link below:
