4.201 unwillingness: 'will not' and 'won't'

If you want to say firmly that you are unwilling to do something, you use 'will not' or 'won't'.

• I will not hear a word said against the National Health Service.
• I won't leave you. You can't make me!

If you are refusing to do something, you can just say 'I won't'.

• 'Tell me your secret.' --- 'I won't. It wouldn't be a secret if I told you.'
• 'You'll just have to search every single one.' --- 'Well, I won't!'

You can use 'won't' to say that someone else is unwilling to do something.

• He won't give her a divorce.