精选优质文档-倾情为你奉上陈述句变为否定句1. 如果陈述句中有be动词（am , are, is, was, were）,就在be动词后面直接加not。 I am a student. I am not a student. You are sad. You are not sad.She is a good girl. She is not a good girl.He is a good boy. He is not a good boy.Yesterday was Monday. Yesterday was not Monday.The students were busy yesterday. The students were not busy yesterday.2. 如果陈述句中有情态动词（can must should may will等），就在情态动词后面直接加not。 I can swim. I can not swim. You wi
