Singular	Plural
I You He She It	We You They

I	You	He: John Mark	She: Melanie Stephanie
It (animal, thing): The dog The tree	We: John and I Jerome, Sandra, and I	You: The players and you Sam, Frank, and you	They: The houses The dogs Sam and Stephanie

Examples:

John is a doctor. “John” is a masculine singular noun that can be replaced with the pronoun he.

John is a doctor. He is a doctor.

Melanie is happy. “Melanie” is a feminine singular noun that can be replaced with the pronoun she.

Melanie is happy. She is happy.

The tree is tall. A “tree” is a thing, and a thing or an animal can be replaced with the pronoun it.

The tree is tall. It is tall.

Mark and I are good friends. “Mark and I” can be replaced with the pronoun we.

Mark and I are good friends. We are good friends.

You and Steve are playing tennis. “You and Steve” can be replaced with the pronoun you.

You and Steve are playing tennis. You are playing tennis.

Sam and Stephanie are married. “Sam and Stephanie” can be replaced with the pronoun they.

Sam and Stephanie are married. They are married.