等开到荼蘼
be 是系动词 ，一般现在时的情况下 有3种“ am ,is ,are ”。“am,is ”的过去式是" was ",“are”的过去式是"were"。
be过去分词都是been。
is例句：He is good boy.他是个好孩子。
am例句：I am a teacher.我是一名老师。
are例句：we are friends.我们是朋友。
was例句：The building was constructed from the design of that architect.这幢大楼是按那位建筑师的设计建造的。
were例句：If I were you, I would have failed. 如果我是你，我可能会失败的。
been例句:Those rooms have been assigned to us. 那些房间已经分配给我们。
笑笑之笑0
参考答案：be 为连系动词、系动词 ，表示状态，不能跟动词原形，一般式为am/is/are ,过去式为was/were ，一般将来时am/is/are+going to +动词原形 。例如：I am a bus driver . I was ten years old last year. He is a worker .She was ill last week . We are students. They were at home llast night . I am going to go home tomorrow . Alice is going to play football next sunday morning . They are going to do some shopping soon .
