it is being done,from being done

it is being done,from being done

is done用于阐释常识性，普遍性的事情。如，刷子被用来擦鞋The brush is used to polish shoes。is being done用于be worth及be worthy 的用法：The problem is worth discussing.The problem is worthy of being discussed.The problem is worthy to be discussed. 10、Practice 这电脑坏了。需要

It is being repaired. 这是现在进行时的被动语态。如：The bike is being repaired by Tom. Tom正在修理自行车。自行车正在被修理。现在进行时的被动语态：be being done网络释义1. 某件事正在被做模块二Unit 4& see sb. doing 看见某人正在做---is being done某件事正在被做--- in relief 如释重负，轻松地blog.sina.cn|基于

↓。υ。↓ 正在进行时的被动语态，being是为了使结构完整添加的。有多种时态的被动语态。一般现在时：am/is/are+v.pp;一般过去时：was/were+v.pp;现在完成时：has/have+been+v.pp;过去完成时：had It is being done 是现在进行时的被动语态。意思是：它正在被做。It has been being done 是现在完成

is being done为被动语态。以do为例，各种时态的被动语态形式为：am/is/are+done（过去分词）一般现在is being done为被动语态。以do为例，各种时态的被动语态形式为：am/is/are+done(过去分词)一般现在时。例句：Visitors are requested not to touch the exhibits.has/have been

is being done是“正在被做”，时态是现在进行时will be done是“将要被做”，时态是将来时Is being的时态用法1. is being done:现在进行时的被动语态，就是某物正被怎么样，这是一个被动语态，be done。所以这里的谓语动词是be，repaired是非谓语动词。所以这是一个现在进行时的被动语态：is being done.还有注意，不是说一句句子里只有