真实条件语句和虚拟语气--高手给分析分析

真实条件语句和虚拟语气--高手给分析分析
自己编了几个句子请高手看看语法对不?
例句：
真实语气：
We will maintain the project if the project have finished.
We will finish the project if we work hard.
虚拟现在：
If we finished the project now, I would go home right now.
虚拟将来：
If we could finish the project tomorrow, I would go out.
虚拟过去：
If we had finished the project yesterday, I would have seen you.

We will maintain the project if the project have finished.
这句让人费解
We will finish the project if we work hard.这句没问题
后面的3句都对

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