had been raining是过去完成进行时。
例句：
It had been raining hard all night.
大雨下了一整夜。
The ground was wet. It had been raining.
地是湿的。此前一直在下雨。
扩展资料
It had been raining and the street was still wet.
天一直在下雨，街道仍然很湿。
If it had been raining, I could have stayed inside.
如果一直下雨，我可能就待在家里了。
If it had been raining yesterday, I would not have come here.
如果昨天还在下雨的话，我就不会到这里来。
