Pronouns are handy words that take the place of the names of people, places, and things. Be sure to give every pronoun a proper job. Here is what you need to know about pronouns:
Singular subject pronouns (when one person or thing does the action or exists in the state of being): I, you, he, she, it, who, whoever.
Plural subject pronouns (when more than one person or thing does the action or exists in the state of being): we, you, they, who, whoever.
Singular object pronouns (one person or thing receiving the action): me, you, him, her, it, whom, whomever.
Plural object pronouns (more than one person or thing receiving the action): us, you, them, whom, whomever.
Singular possessive pronouns (showing ownership by one person or thing): my, mine, your, yours, his, her, hers, its, whose.
Plural possessive pronouns (showing ownership by more than one person or thing): our, ours, your, yours, their, theirs, whose.