i want back还是i want to back

问题描述:

i want back还是i want to back
不太懂请指教

I want to back.want to do,也就是跟动词.want直接加n.,也就是名词.back这里作系动词解释,表示退回.是 我想要回来 的意思.所以不是名词后背.所以要用want to