No, those are the words used in the contraction how're(e.g. So how're the kids?).
Unlike how's, the contraction how're is considered informal English, possibly because it does not change the pronunciation greatly or reduce the number of syllables.
There is no contraction. The contraction we're means "we are."
There is no contraction for I was. There is a contraction for I am (I'm) and for I have (I've).
There is no contraction of we'll. It is a contraction, meaning "we will."
There is no contraction. There is a contraction we'dmeaning either we would or we had.
There is no contraction. The word isn't is the contraction, meaning "is not."
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).
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.
There is no contraction. There is a contraction doesn't which means "does not."
There is no contraction. The contraction we're means "we are."
There is no contraction for I was. There is a contraction for I am (I'm) and for I have (I've).
The contraction for "were" is "we're."
It's is the contraction of it has and it is.
"They've" is the contraction for 'they' and 'have'.
The contraction for "he will" is "he'll."
The grammatical contraction for "have not" is "haven't."
Didn't is a contraction of the words "did" and "not". There is no 'contraction' for this word.