The contraction for have not is haven't.
There is no contraction for were you. There is no contraction for you were.There is a contraction for "you are" (you're).
He's already IS a contraction. It is a contraction of he is.
"They've" is the contraction for 'they' and 'have'.
It's is the contraction of it has and it is.
We're is a contraction of we are.
The contraction for they are is they're.
"Wasn't" is the contraction for "was not".
aren't
following gramatical rules make a sentence standard
slang
Sujeto verbo y predicado
There is no contraction for were you. There is no contraction for you were.There is a contraction for "you are" (you're).
There is no contraction for "its not."There is a contraction for "it is" (it's).There is a contraction for "is not" (isn't).
He's already IS a contraction. It is a contraction of he is.
"They've" is the contraction for 'they' and 'have'.
It's is the contraction of it has and it is.
We're is a contraction of we are.