We often combine two words and speak and write them as one.

The shortening of word is called contraction.

Short forms of is, am and are with pronoun

Full form -short forms

I am - i'm

He is - He's

She is - She's

It is - It's

You are - You're

We are - We're

They are - They're

There is - There's

There are - There're

Shorts form of is, am and are with not

I am not - I'm not

He is not - He isn't

She is not - She isn't

It is not - It isn't

You are not - You aren't

They are not - They aren't

Short form of was and were with not

I was not - I wasn't

He was not - He wasn't

She was not - She wasn't

It was not - It wasn't

You were not - You weren't

We were not - We weren't

They were not - They weren't

Some more shorts form

Has not - Hasn't

Have not- Haven't

Had not - Hadn't

Do not - Don't

Does not - Doesn't

Did not - Didn't

Can not - Can't

Will not - Won't

Would not - Wouldn't

Must not - Mustn't

Could not - Couldn't

Shall not - Shan't

I have - I've

You have - You've

I shall - I'll

I will - I'll

He will - He'll