1、陈述句分为肯定句和否定句两种句式，肯定句的基本结构是“主+谓”，如he went to london, 他去伦敦了
3、全部否定用Not, no, never, neither, none, nothing等否定词，表示“完全不是，完全不”的意思，如Nothing is wrong with me
5、动词带有情态动词will, shall, can, may, must, need巳呀屋饔, dare, ought to, used to, had better等时，将not置于情态动词与主要动词之间，如you had better not telling her everything
