can't cannot用法Cannot是“不可以”,而can not是“可以不”.举个例子：I cannot beli

can't cannot用法
Cannot是“不可以”,而can not是“可以不”.
举个例子：
I cannot believe this!（我无法相信!等于I can't believe this!）
I can not believe this!（我可以不相信!也就是说,I can believe this,or I can not believe this.我并不一定要相信,我可以选择不相信.）
人家说是这样用行吗?有些人说can't cannot是一样的?究竟谁对啊?
还是两个都错