现在完成时
追答例如:
I have finished my homework
我已经写完作业
He has been to Shanghai
他去过上海
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/a8773912b31bb051b0d43900357adab44aede022?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
叫做现在完成时
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/bd315c6034a85edf57b10b0b4a540923dd5475dd?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
供你学习,不懂部分请问
追问加been和没有been的分别
追答加了是被动
追问被动?
追答例如:The work has not been finished yet
工作尚未完成。
工作没有被完成。
追问加和不加行不行
追答表示被动非加不可
追问我真看不出加了的分别,被动究竟有什么意思
追答这个问题不是一句话能解决的,你最好另去提问。我另外为你解答。
本回答被提问者采纳