The contraction for will not is formed differently from other contractions using not.
will not = won’t
I will not listen to that music.
I won’t listen to that music.
In English, there is a contraction for the words are not.
are not = aren’t
We are not going to the party.
We aren’t going to the party.
However, there is no contraction for the words am not. Writers and speakers must use the full words.
I am not going to the party.
▶ Which of these two sentences has words that can be made into a contraction using the adverb not? The boys are not going to school. I am not going to practice. Did you pick the first sentence? Good for you!