Contractions

São junções entre os pronomes pessoais e um verbo (no caso to be) ou outras palavras, usadas geralmente na fala, na linguagem coloquial/informal:

No caso do verbo to be temos:

Positive	Negative
I am = I’m	I’m not
You are = You’re	You’re not ou You aren’t
He is = He’s	He’s not ou He isn’t
She is = She’s	She’s not ou She isn’t
It is = It’s	It’s not ou It isn’t
We are = We’re	We’re not ou We aren’t
You are = You’re	You’re not ou You aren’t
They are = They’re	They’re not ou They aren’t

Come on little boy, you aren’t brave enough to do it.

She isn’t a good girl.

That’s a good idea!

How’s it going?

What´s your name?