As soon as I have finished this work,I will have gone home.前后时态怎么是一样的?

问题描述:

As soon as I have finished this work,I will have gone home.前后时态怎么是一样的?

as soon as 引导的时间状语从句用的是现在完成时,它是用现在完成时代替将来完成时,而主句用的是将来完成时.补充:整句话的意思是:我一完成这工作,我就回家.