请分析这句英语的语法The cave might never have been discovered had not

请分析这句英语的语法The cave might never have been discovered had not 问一个英文句式The cave might never have been discovered had not the 英语翻译The incident might have been brushed aside had it not fo this is the story of a champion that might never have been.请 there might have been no Lolita at all had I not loved 这句话是什 分析下这句话的语法A radio message from the mainland had been received 请分析这句英文语法布莱里奥从1905年起便开始研制飞机Bleriot had been making planes si 英语翻译1.If the rules of perspective had not been discovered,no 英语翻译I might have been skeptical had I not been used to respo it might have been prevented had he received the care.中had是个 请帮忙分析下语法Had he not agreed to attend ,some say,the convention 请帮忙分析这句英语的语法