加过去分词是过去时态。
been：
v.曾经;曾经到过(某地)。
are的过去分词;be的过去分词。 扩展资料
It's been quite a day, one way and another.
从几方面看，这是不寻常的一天。
Their family has always been well thought of around here.
他们家在这一带一直颇受敬重。
There have been many changes in recent years.
近几年发生了许多变化。
A new system has been devised to control traffic in the city.
控制城市交通的`新系统已经设计出来。
We had to work within the parameters that had already been established.
我们必须在已设定的范围内工作。
