There had been few complaints since the Commandments were posted almost twelve years ago.

VOA: special.2011.03.17

There had been a half century that had passed since any great modern epic or romance epic had even been produced.

在过去的半个世纪中,没有任何伟大的现代史诗或浪漫史诗出现。

耶鲁公开课 - 弥尔顿课程节选

and I think that since Enron and Worldcom, there had been a lot of regulatory changes

我觉得安然和世通的事情之后，有好多规章调整

美国的会计丑闻 - SpeakingMax英语口语达人