Here's why:
* Adverbs modify verbs, adjectives, or other adverbs. They tell us how, when, where, or to what extent something happens.
* Nouns name people, places, things, or ideas.
* Pronouns replace nouns to avoid repetition.
Example:
* "They lived happily ever after." (Happily modifies the verb "lived")
Let me know if you have any other questions!