情态动词和行为动词的区分

情态就是只是表达感情的,没有实在意义的词,否定直接加not在后面
行为动词就是有实在意义的动词,如：watch,look,eat等,否定在前面加don't
has后面加了动词,而且该动词是过去分词,has就是情态动词,否定为hasn't
如：I has lent the book to LiMing.
has 后面直接加名字,就是行为动词,主要表达“有”等意思,否定为don't have
如：I has a book.
need也是同理,情态动词否定needn't,行为动词否定don't need