Determiner | Rule | Example
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Articles (a, an, the) | Used before nouns to specify or limit them | a cat, an apple, the book
Demonstratives (this, that, these, those) | Used to point out specific nouns | this car, that house, these shoes, those birds
Possessives (my, your, his, her, its, our, their) | Show ownership or relationship | my dog, your phone, their house
Quantifiers (some, any, many, few, several, all, both, each, every) | Indicate quantity or amount | some cookies, many books, all students
Numbers (one, two, three, etc.) | Indicate exact quantity | one pen, three apples, five cars
Interrogatives (which, what, whose) | Used to ask questions | which book, what time, whose bag