为什么用are you finished这位什么用are 时态呢

为什么用are you finished这位什么用are 时态呢 are you finished you are suppposed --------the work yesterday but you forget.为什么用to have finished are you finished with that marketing book i lent you.为什么用with? I won't lend you the book before I have finished it.为什么用have finished Are you finished?有这种说法吗? 有这种说法吗?Are you finished? Are you finished?句子是什么结构 -Will you come to my office when you ____your work? -Sure 为什么不填finished而要用have finished You shall borrow the book when I have finished reading it为什么要用have finished,这里是有什么语法呢,finished不可以吗 do you think the work will be finished in half an hour?中为什么要用‘finished’过去式啊? 你们完成了吗是are you finished 还是 have you finished 还是什么? both you and i __ finished the work in time空处不应该填HAVE吗?为什么书上写ARE呢 what are going to do when you the work?A will finish B finishesC finished D finish选什么?为什么? Have you finished(reading)this book为什么用ING形式Are you feeling better these days?yes,much better.I(have't felt)as well as these days for a long time为什么填ING形式 Finished?are you sure you are finished?都是啥意思?Finished?are you sure you are finished?you cannot return to the create a Family screen to edit this family again are you finished packing yet?这里的finished是形容词是么? when you are finished drinking有语病吗?