Having been 是什么时态Having been lost in the mountains for a week ,the two students were finally saved by the local police.为什么不是 have been lost

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Having been 是什么时态Having been lost in the mountains for a week ,the two students were finally saved by the local police.为什么不是 have been lost
Having been 是什么时态
Having been lost in the mountains for a week ,the two students were finally saved by the local police.
为什么不是 have been lost

Having been 是什么时态Having been lost in the mountains for a week ,the two students were finally saved by the local police.为什么不是 have been lost
你不要被having 的ing 迷惑住,其实就是现在完成时,只不过做了伴随状语,需要用ing形式来修饰the two students , 所以它的原形就是have been ,
原句可以改成,The two students have been lost in the mountains for a week ,the two students were finally saved by the local police.
只不过为了简便,所以第一句成了修饰成分.
明白了?呵呵

将来完成

现在完成进行时

具体情况具体分析
HAVE BEEN DOING. 现在完成进行时
HAVE BEEN DONE 现在完成时

是被动的现在完成进行时~

现在完成时的被动？

依我现在的水平还不知道
但是不是现在完成进行时也不是现在完成时
更不是被动了吧？

同三楼

having been 这个我还不晓得~~但是have been doing完成进行时，表示动作已经开始，但没有结束，并有可能持续下去。

就是have been
现在完成时啊`````
用Having是因为它在句首，而且和主语the two students 是主动关系```

现在完成时，推都推出来啦

实际是它就是have been lost，只不过它是个非谓语动语啦，句中主语the two students 与lost可以理解为”主动”的关系，所以就用的Having啦．．实际是它是现在完成时．

having been done是什么时态? 英语时态问题：had painted 、having been painting、having painted分别是什么时态谢谢了 have been painting和having worked 分别是什么时态?用在什么地方? I appreciated having been invited to the party.这个句子是什么时态? Having been 是什么时态Having been lost in the mountains for a week ,the two students were finally saved by the local police.为什么不是 have been lost have+been是什么时态 have been working 是什么时态 have been to是什么时态? had been doing 是什么时态? i've been ...是什么时态? had been doing是什么时态 it's been是什么时态, had been doing是什么时态英语中having done是什么时态? having done的句子是什么时态的,having done 咋用~ we have had been having a lot of rain recently 用的是什么时态为什么这么用这句中的have and had 到底是怎么用的？ have/has/had加been是什么时态 what have they been doing 是什么时态