Having suffered such heavy loss,the businessman didn't have

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Having suffered such heavy loss,the businessman didn't have the courage to go on.
有疑问?那主句谓语是一般过去式,但boss与suffer是主动关系,suffer发生在主句前.为何不用过去完成时?而用having Suffer

having suffered是非谓语动词,没有所谓过去完成时.
having suffered本身有过去意味,因为非谓语动词表示过去用having done,现在用-ing或-ed,将来用不定式to,它的时间总是相对于主句来讲的.
希望能帮到你,望采纳!
再问：非谓语不就3种吗？？
doing ,to do , done.为什么就不选 suffering,呢

Having suffered such heavy loss,the businessman didn't have （） such heavy loss,the businessman didn't have the courage Having suffered such a heavy loss和suffered such a --的区别 having suffered such heavy pollution already,it may now be t Having suffered a great loss, _____such heavy loss in the hurrican,the farmer didn't expec 帮我看一个英语句子,eg：Having suffered such heavy pollution already,it 英语选择空such heavy loss in the hurricane,the farmer didnot exp she didn't post the heavy pardel Having suffered sruch heavy pollution already it may now be ——such a heavy loss in the earthquake,they got help from all We didn't have a moment to understand the loss 怎么翻译会比较合适?求指教