Will not: won't
Shall not: shan't
Would not: wouldn't
Should not: shouldn't
Could not: couldn't
Had not: hadn't
Is not: isn't
There are probably others, but these are the ones I know off of the top of my head.
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".
Haven't is the contraction of have not.
Didn't is a contraction of the words "did" and "not". There is no 'contraction' for this word.
contraction made in the words you will: you'll
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
Contractions are formed when two words are combined to create a shorter word. Examples would be "don't" which is a contraction of the words "do" and "not," the word "can't" which is a contraction of the words "can" and "not," and the word "isn't" which is a contraction of the words "is" and "not." Contractions are considered informal language.
Let's is the contraction of the two words 'Let us'