i regret having left the work unfinished,i should have plann

i regret having left the work unfinished,i should have plann I regret having left the work unfinished ,I_everything ahead I regret having left the work unfinished.这是什么语法现象? Do you regret having left your first job why should I don't I know what I have left unfinished will be passed on to them I regret not to have started earlier与I regret not having sta He regretted that the work had been left unfinished. I have little money left,please____(work)the cost exactly. i regret having missed the chance的问题 i am not sure where i should have left it now i regret having done改成to have done不行吗?为什么? the last thing I should have left home with怎么翻译