自体脂肪面部填充能保持多久:HE TRIED TO BE AMUSING 请问BE在哪些单词前面要加BE

来源：百度文库编辑：神马品牌网时间：2024/04/30 08:59:03

在哪些句子里一定要加BE

be是一个连系动词，它有自己不同的形式
现在时：be 进行时：being 过去时：was/were 过去分词：been
它的后面必须跟形容词或名词作表语，与之构成系表结构，充当句子的谓语。
i am a student主语：i 谓语：am a student（系表结构）
being是它的现在进行时态，一般不单独用，而是用于现在进行时的被动语态。（being+动词过去分词）
the bike is being repaired.单车正在被修理中。
it is being finished by him这正在被他完成中。
been是它的过去分词，也不一般单独使用，而是用于现在完成时、过去完成时以及需要它的句子。
i have been here for a long time.我已经到这里有一段时间了。

be 就相当于 AM IS ARE，后面往往接名词或形容词，在被动语态中后接过去分词。
It needs confidence to be a teacher.接名词
You will be rich someday. 接形容词
I dont want to be blamed. 被动语态，接过去分词。

在动词ing形式表示形容词的时候，前面加BE

HE TRIED TO BE AMUSING 请问BE在哪些单词前面要加BE I tried to persuade him not to smoke,but he wouldn't listen to me He longed to be back home All my life I have tried to be an honest man He tried to stand on his hands for give minutes, ____ is rather a difficult thing to do. be tried of和be tried from有何区别 He used to be a teather. 什么时态 He was lucky enough not to be hurt___in the accident. TRANSLATE:he lived to be 63.这句市什么句型？ he use to be a clow哪有错

自体脂肪面部填充能保持多久:HE TRIED TO BE AMUSING 请问BE在哪些单词 前面要加BE

自体脂肪面部填充能保持多久:HE TRIED TO BE AMUSING 请问BE在哪些单词前面要加BE