He doesn't speak English as／so fluently as you．他的英语说得不如你流利
问题描述：
He doesn't speak English as／so fluently as you．他的英语说得不如你流利
这里面he 后面为什么不用is用does?
答
speak是个动词,动词前要用助动词帮助完成这个句子,所以用主语He ,加助动词does +not,加动词speak.如果是肯定句就是He speak English as/so fluently as you.