你在做什么用英语说为什么是what are you doing 不是what do you doing啊

你在做什么用英语说为什么是what are you doing 不是what do you doing啊 what are you doing 为什么不是is? 你做这个干什么?用英语怎么说?what are you doing that for 还是what do you doi 为什么是What were you doing,是过去式为什么要用doing,不是what were you do 英语为什么要What are you doing?而不是What do you doing?我经常把are和do 弄混 what do you t-----you are doing what do you think you are doing what are you doing什么意思啊 what are you doing. what you are doing what are you doing What are you doing?