Here are some examples:
Singular:
* My book is on the table. (This book belongs to me.)
* Your phone is ringing. (This phone belongs to you.)
* His car is red. (This car belongs to him.)
* Her dress is beautiful. (This dress belongs to her.)
* Its tail is wagging. (This tail belongs to it.)
Plural:
* Our house is big. (This house belongs to us.)
* Your parents are coming to visit. (These parents belong to you.)
* Their dog is friendly. (This dog belongs to them.)
Here's a helpful way to remember them:
* My, your, his, her, its: These are for singular possession.
* Our, your, their: These are for plural possession.
Important Note:
"It's" is a contraction of "it is" or "it has" and is not a possessive pronoun.