Here's why:
* Nouns are words that name people, places, things, or ideas.
* Verbs are words that describe actions or states of being. They tell what the subject of a sentence is *doing* or *being*.
Let's look at an example:
* The cat (noun) sat (verb) on the mat (noun).
Here, "cat" and "mat" are nouns because they name things. "Sat" is the verb because it describes the action the cat is performing.
Verbs are a fundamental part of language because they express what's happening in a sentence!