一般式： being written

　　过去式： having been written

　　He was punished by being sent to bed without any supper.

　　他被罚不让吃晚饭就去睡觉。

　　I remember being taken to Paris as a small child.

　　我记得我在儿时被带到巴黎过。

　　The safe showed no signs of having been touched.

　　保险箱没有被人动过的痕迹。