you could have done better if you ----more time1had 2had had3has4has had请选择请解释为什么谢谢

how could you have done could never have done could not have done Could have done would have done should have done could have been done ,could have do you have any regrets about things you wish you could have done earlier?翻译 could never have done 造句 could you tell us about what you have done and what you haven‘t done yet.怎么翻译? 虚拟语气 if You could have done other career What would it have been 为什么不是 if ..Had done 句 would have done,might have done,could have done,should have done分别表示什么意思? should have done ,shouldn't have done.could have done,couldn't have done could have done和need have 英文句子 I could not have done this without you为什么要+have?和I could not done this without you有什分别? 翻译You could have done much better yesterday.Why didn't you ?谢谢 could have done和would have done的区别 should have done和could have done的区别? 高中英语中might have done 和could have done 英语：should have done与could have done区别?