When do you use it in a sentence?

Answer 1

It's is a contraction for "it is"; for example: It's raining outside! Or: It's not working.

Its is a possessive adjective that describes a noun as belonging to someone or something; for example: The tiger is hungry; its food will be eaten quickly.

Answer 2

The word its is the possessive form of the pronoun, and does not use an apostrophe. You use "its" to refer to an action or characteristic of a previously named noun.

Example (one sentence) : "The kitten ran to its mother." (the kitten's mother cat)

Example (more than one sentence) :

"The shark was near the beach. We could see its fin." (the shark's fin)

NOTE :

The apostrophe form it's is a contraction, used to mean "it is". It is not the possessive form.

Answer 3

It is a pronoun that stands it place of an object or refers to an object. (Object here is NOT the same as object of a sentence.)

I liked the chair because it was comfortable. (It refers to the chair.)

It made me angry when mom yelled at me. (It refers to mom yelled.)