现在完成时什么时候加been?has been donehas done怎么分别?

现在完成时什么时候加been?has been donehas done怎么分别? 现在完成时什么时候加been?为什么?急. 现在完成时have后什么时候后面加been? 现在完成时什么时候加been,什么情况加一种是直接have加过去分词，另一种是have been+过去分词。分不清楚什么时候用have b+ The ice has been melted .为什么这个现在完成时要加been,been不是被动语态吗? 现在完成时什么时候用been,什么时候用done 现在完成时什么时候加been什么时候不加 been 1.it had been wrappedin ...2.the bag mush have been found by one of the villiagers3 .a large sum of money had been lost4.there have been a great number5 he has won five prizes 现在完成时改被动语态什么时候用has或have been done 英语现在完成时什么时候用have/has been,什么时候用have/has 动词过去分词.我一直搞不清出,要是能把现在完成时的规律告诉我更好了, 现在完成时have/has为什么后面有时加动词的过去分词,有时加been since 时间的时态,什么时候用现在完成时,什么时候用现在完成进行时she_______in the elementary school since she graduated from college in 1990.a/ taught b/ has been teaching c/ was teaching d/ has taught 现在完成时中什么时候有been,什么时候不用been如上 现在完成时中什么时候用been ,什么时候不用been has been working 这叫什么时态来着,现在完成时加上进行时 现在完成时和过去完成时 什么时候要加个been 有关于现在完成时的~Dick is not here.he__________the cinema.A.has gone B.has been toC.has been away D.has been with 现在完成时have/has gone to,have/has been to,have been in有什么区别Mr Li____England.He___London for two weeks.A.has been to,has been to B.has gone to,has been in C.has been to ,has been in D.has gone to ,has been to 现在完成时什么时候需要用到beenMy brother has never been abroad befoer,so he is finding this trip very exciting.求此处been的用法