精选优质文档-倾情为你奉上Be动词的用法:现在时 I am, you are, he is, we are, you are, they are (缩略式 Im, youre, hes, were, youre, theyre), (否定缩略式 Im not, isnt, arent), 过去时 I was, you were, he was, we were, you were, they were (过去时否定缩略式 wasnt, werent), 过去分词 been, 现在分词 being1) be +现在分词,构成进行时态,例如: They are having a meeting. 他们正在开会。 2) be + 过去分词,构成被动语态,例如: The window was broken by Tom. 窗户是汤姆打碎的。 3) be + 动词不定式,可表示下列内容: a. 表示最近、未来的计划或安排,例如: He is to go to New York next week. 他下周要去纽约。 说明: 这种用法