1. Personal Pronouns: take the place of people or things

eg: I, you, he, she, we, it, they, me

2. Possessive Pronouns: personal pronouns that indicates the possession of something/owner of something

eg: my, your, his, her, (mine, yours, theirs- stand alone and not followed by a noun)

3. Relative Pronouns: use to connect a clause or phrase to a noun or pronoun [to add more information]

eg: who, whom, which, that

4. Reflexive Pronouns: when a subject perform an action on itself, the sentence use reflexive pronouns after the verb

eg: myself, himself, herself, themselves