To speak English clearly, we need to know who is doing an action and who owns an object. Let’s look at the three categories:
1. Subject Pronouns
These pronouns replace the person or thing doing the action. They always come before the verb.
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Pronouns: I, You, He, She, It, We, They.
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Example: Mary is a teacher. → She is a teacher.
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Example: John and I live here. → We live here.
2. Possessive Adjectives
These words show ownership. They must always be followed by a noun (the object that is owned).
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Adjectives: My, Your, His, Her, Its, Our, Their.
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Example: This is my car.
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Example: Where is their house?
3. Possessive Pronouns
These also show ownership, but they replace both the adjective and the noun. We use them to avoid repeating the noun. They are never followed by a noun.
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Pronouns: Mine, Yours, His, Hers, Its (rare), Ours, Theirs.
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Example: This car is my car. → This car is mine.
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Example: Is that pen your pen? → Is that pen yours?