没有 would had done 这种时态是吗?

题目

没有 would had done 这种时态是吗?
只有would have done.没有 过去将来过去完成时?

答案

would had done 这种时态表达.何况 would 后面都是加原型动词.
是的,只有would have done 的用法,且通常用于假设与过去事实相反的语气.
如：If I had been here last night,I would have done it.