1、Be动词的形式： be, is, am, are, was, were, being, been 。
2、be动词的用法：后面接名词，形容词 ， 地点副词，或短语做补足语 。
【be动词的形式和用法】3、be动词的否定，在am, is, are, was, were 后面加 not, 缩略式am not, isn't, aren't, wasn't, weren't 。
1、Be动词的形式： be, is, am, are, was, were, being, been 。
2、be动词的用法：后面接名词，形容词 ， 地点副词，或短语做补足语 。
【be动词的形式和用法】3、be动词的否定，在am, is, are, was, were 后面加 not, 缩略式am not, isn't, aren't, wasn't, weren't 。
