are,has,ing形式?十万火急～＾

are,has,ing形式?十万火急～＾ are与has的ing形式^. has的动词ing形式 为什么is am are 没有 ing 形式 为什么has/have been.后面的动词要是ing形式? ing形式? -ing形式, we are leaving tomorrow?为什么可以用ING形式 are后面可以接begin的ing形式吗 get什麼加ing十万火急,快 What are you talking about?为什么talk加ing这里talking是动词加ing形式还是名词形式`` He has been used to walking to school为什么 to 后面可以跟ing形式? 为什么has made a great contribution to preventing?为什么tO后面可以加ING形式 she has always loved drawing.love为什么用ing形式.打错了。是draw Government has problems basically controlling anything beyond the capital.control用ing形式的原因?rt He said,“We are still students.’ 改为间接引语：He said they are still students.为什么“are”不变换成“were”?十万火急ING! take的ing形式 boat的ing形式