learned that nouns are names of people, places, things, or ideas. For example, dog, school, and happiness are all nouns. I also learned that verbs show action or a state of being, such as run, eat, or is. Another important point was that adjectives describe nouns and pronouns, like in the phrases red apple or happy child. These rules make it easier to see how words work together in a sentence.
Examples from my own sentences:
Nouns: dog, school, happiness
Verbs: run, eat, is
Adjectives: red, happy