"Won't" is a contraction of "will not" and serves as a shorter, more informal way to express the negative future tense.
For example:
* Formal: I will not go to the party.
* Informal: I won't go to the party.
"Won't" is a contraction of "will not" and serves as a shorter, more informal way to express the negative future tense.
For example:
* Formal: I will not go to the party.
* Informal: I won't go to the party.