请简述下not that...(but that)的用法

Not that …but that 意思是 “（这）并不是…而是”,是 it is notthat … but that 的省略.两个 that 是由连词but并列的表语从句,第二个 that 可以省略,that 是 后面需要带一个陈述性的句子.例如：


Not that I dislike her,but (that) I have no time.并不是我不喜欢她,而是我没有工夫.
Not that it matters,but (that) how you spent the money I gave you.并不是说这事有什么要紧,而是你是怎样花掉我给你的那笔钱的.


这类句子也可以倒过来说,等于not that 前省略了 it is.例如：


He has no time,not that he dislikes the work.我没有时间,并不是我不喜欢这项工作
How did you spend the money I gave you—not that it matters?你是如何把我给你的钱花掉的—— 我倒不是说这事有什么当紧?

1 相当于 not because …..., but because …
　　例：He gave up the work, not that he disliked it, but that he was unequal to it.
　　
2 固定句式：It is not that ……, but that ……。
　　例：It’s not that I don...