I am (I´m)
He is (he´s)
She is (she´s)
It is (It´s)
We are (We´re)
You are (You´re)
They are (They´re)
I am not (I´m not)
He is not (he´s not o he isn´t)
She is not (she´s not o she isn´t)
It is not (It´s not o It isn´t)
We are not (we ´re not o we isn´t)
You are not ( you´re o you isn´t)
They are not (they´re not o they isn´t)