1. 当 being 为连系动词时，非谓语动词结构 being ... 可用作主语、宾语、宾语补足语、状语等，但是不能用作定语。遇此情况，可考虑改用定语从句。如：

凡10点钟以后仍在外面的人将被逮捕。

误：Anyone being outside after ten o’clock will be arrested.

正：Anyone who is outside after ten o’clock will be arrested.

2. 当 being 为助动词时，非谓语动词结构 being ... 可用作主语、宾语、宾语补足语、状语等，也可用作定语。如：

The house being built is our new library. 正在建的房子是我们的新图书馆。

That picture of the children being talked to by the Prime Minister is wonderful. 那张小孩子们正在聆听首相谈话的照片照得非常好。