A pronoun is a word that takes the place of a noun. In the sentence ‘Riya waved at Amit, he ran towards her’, the pronouns he and her take the place of Amit and Riya, respectively.
Example: I, me, he, she, herself, you, it, that, they, each, few, many, who, whoever, whose, someone, everybody, etc.
There are mainly four types of pronouns: subject (for example, she); object (her); or possessive (his); reflexive(himself)
Subject pronouns are used when the noun is the subject of the sentence.
John(noun as a subject) drove the car.
Replaced by : He drove the car.
Linda(noun) did not invite John.
Replaced by : She did not invite John.
Subject pronouns are also used to replace the subject in the same conversation(or sentence)
Examples: It is not John who is responsible for the fight.
It is you who decided to separate.
Object pronouns are used to replace nouns which form the object, indirect object, and object of a preposition of a sentence.
Linda did not invite John(noun as an object).
Replaced by :Linda did not invite him.
John drove the car.
Replaced by : John drove it.
(few other Examples: I gave him a book. Don’t shout at me. I don’t trust him. You don’t know me)
Object pronouns include me, him, herself, us, them, themselves.
Possessive pronoun is a part of speech that attributes ownership to someone or something. Like any other pronoun, it substitutes a noun phrase and can prevent its repetition.
This car is mine, not yours.
mine and yours are possessive pronouns
(yours, his, hers, its, ours, mine and theirs are all possessive pronouns.)
Note: Possessive pronouns never need apostrophes. Avoid mistakes like it’s and your’s.
Reflexive Pronoun is used as an object when the object and subject are same, and when the purpose of the object is to refer back to the subject.
He shot himself (reflexive pronoun) in the foot.
You have to explain yourself.
She denied herself the pleasure of being a rich woman.