This document discusses gerunds, which are verbal nouns ending in "ing" that can function as subjects or objects in sentences. Gerunds emphasize the action behind a noun. Some key facts are that gerunds look like verbs but function as nouns, and they enhance sentence meaning by highlighting actions. Examples show how gerunds draw attention to the action being described compared to regular nouns. The document concludes that gerunds emphasize living and working in sentences due to their ability to communicate the action behind a noun.