it's been has been 麻烦告诉一下 been 的语法,一般用在哪里?怎么用?_英语解答

it's been has been 麻烦告诉一下 been 的语法,一般用在哪里?怎么用?

人气：217 ℃　时间：2019-10-11 14:48:52

解答

been 是be的过去分词形式 1.have /has been +done已经被.2.have been to+地点去过某地已回来 3.have/has been doing一直在做某事 4.to have been done不定式的分词机构