Here's why:
* Verbs tell us *what* is happening, while nouns tell us *who* or *what* is involved.
* Verbs are typically the heart of a sentence, while nouns are the subjects or objects of the verb.
* Adjectives modify nouns, providing more information about them. For example, "The *big* red *ball* bounced high." Here, "big" and "red" modify the noun "ball".
Let's look at an example:
"The dog barked loudly."
* Dog is the noun, the subject of the sentence.
* Barked is the verb, telling us what the dog did.
The verb "barked" doesn't modify "dog"; it describes the action the dog took.