pp of be.

NOTE ON USAGE 用法
*Been is used as the past participle of both `be' and `go' *been用作`be'和`go'两字的过去分词
*I've never been seriously ill (be). 我从未得过大病（动词原形为 be）.
* I've never been to London (go). 我从未去过伦敦（动词原形为 go）. Gone is also a past participle of `go' *gone也是`go'的过去分词
*They've been to the cinema means that they went and have returned. ｀他们去过电影院＇意思是他们去了而且已回来了. They've gone to the cinema means that they went and are not back yet. ｀他们去电影院了＇意思是他们去了但是还没回来.

[Language: Old English;Origin: gebeon]
the past participle of be
a) used to say that someone has gone to a place and come back
been to
　I've never been to Japan.
have been to do sth
　Have you been to see the Van Gogh exhibition yet?
b)BrE used to say that someone has come to a place and left again
　The postman hasn't been yet.
been there, seen that, done that
spoken used to say that you are no longer interested in doing something, because you already have a lot of experience of it

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WORD CHOICE: been in, been to, went to
Use been in when you are living or staying in a place : How long have you been in London? | He had been in hospital for several days.
Use been to when you have visited a place and come back again : Have you ever been to Kyoto? | She's been to the hospital for a check-up.
Use went to (the simple past) to talk about a specific trip you made in the past : Last May I went to a conference in Montreal.

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