Grammatically, a contraction combines two words (or shortens one word) by replacing one or more letters with an apostrophe. Examples are don't (do not), he's (he is) and would've (would have).
Haven't is the contraction of have not.
Contraction word made from the words they and are is they're.
contraction made from the two words you will: you'll
Contraction word for she will: she'll
Shouldn't
There is no contraction for the words did you.
contraction of the words you will: you'll
There is no contraction for the words "did you".
The contraction for "we have" is "we've."
Didn't is a contraction of the words "did" and "not". There is no 'contraction' for this word.
Haven't is the contraction of have not.
contraction made in the words you will: you'll
The contraction is "I'll".
contraction made from the two words you will: you'll
I + will = I'll
Contraction word made from the words they and are is they're.
Contraction word for she will: she'll