What is the contraction of he not?
He's not or he isn't would work if you were contracting "He is not".
What is the contraction of is?
"Is" by itself does not have a contracted form.Is + not does have a contracted form: isn'tExamples:Dad is not here now.Dad isn't here now.
What is the contraction for he has?
He's Eg. He has performed terribly. He's performed terribly.
What is the contraction of he has?
There is no contraction for 'he has.'