he could undoubtedly bring me down before I’d gone five steps

问题描述:

he could undoubtedly bring me down before I’d gone five steps
I’d gone是had gone?
但这好像是虚拟的,脑中假设,如果我跑,不出五步也会被制服

意思是:毫无疑问,我跑不出5步他(前文提到这是个吸血鬼)就能把我放倒.had gone不是虚拟,虚拟应该有类似这样的搭配:had gone,would have done...,以及if之类的词,但是这个句子里面没有这些结构.换个角度理解这个句子...