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

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 do you do after school?what are you doing? what (is are )you (do doing ) now Do look what you are doing! what are you doing to do there? what are you doing do为什么加ing what are you doing what do you do,和what换成how4句都是什么意思 what are you doing?和what do you doing?有什么具体的区别? 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 do you do?和 what are you doing what are you do三个的区别是什么?