Had failure come along,there would be little friendly consolation. 这句话是什么语法现象呀?

问题描述:

Had failure come along,there would be little friendly consolation. 这句话是什么语法现象呀?
如题

这句话是虚拟句的倒装
倒装之前为 If failure had cme along ,there would be little friendly consolation.
是对现在的虚拟假设 用过去时had
强调的是在虚拟假设的情况下发生的事
翻译为 :如果失败了 就不会有友好的安慰了