Here's why:
* Adjectives: Describe nouns or pronouns. They tell us *what kind*, *how many*, or *which one*. Examples: *big, red, three, this, that*.
* Pronouns: Replace nouns to avoid repetition. Examples: *he, she, it, they, we, you, I, this, that*.
The confusion comes from words that act as both:
* Demonstrative pronouns: *This, that, these, those* can act as pronouns (replacing nouns) or adjectives (describing nouns).
* Pronoun: *This is my favorite book.* (Replaces "book")
* Adjective: *This book is my favorite.* (Describes "book")
* Possessive pronouns: *My, your, his, her, its, our, their* can also act as pronouns or adjectives.
* Pronoun: *This is my car.* (Replaces "car")
* Adjective: *My car is new.* (Describes "car")
Important Note: While these words share characteristics, they have distinct roles in a sentence.
Let me know if you'd like to explore other types of pronouns or adjectives!