Here's why:
* Verbs express actions, states of being, or occurrences. They are the core of the sentence, telling you what's happening.
* Nouns are words that name people, places, things, or ideas. They are the subjects or objects of the verb.
Here are some examples:
* The cat sleeps. (Verb: sleeps; Noun: cat)
* She writes a letter. (Verb: writes; Noun: letter)
* The sun shines brightly. (Verb: shines; Noun: sun)
* Ideas are powerful. (Verb: are; Noun: ideas)
Let me know if you have a more specific question about verbs and nouns!