Here's a breakdown:
* Verb: A word that describes an action or a state of being (e.g., run, jump, be, think).
* Noun: A word that names a person, place, thing, or idea (e.g., dog, city, table, happiness).
* Gerund: A verb form ending in "-ing" that functions as a noun.
Examples:
* Running is my favorite exercise. (Here, "running" is the subject of the sentence and acts as a noun.)
* I enjoy swimming in the ocean. (Here, "swimming" is the object of the verb "enjoy" and acts as a noun.)
* She's good at painting. (Here, "painting" is part of a prepositional phrase and acts as a noun.)