现在进行时的被动语态是am being/is being/are being +动词的过去分词。
Ten new hospitals are being built at the moment. 10家医院正在兴建之中。
The final is being played as we speak.我们说话时正在进行决赛。
Are they putting up the scaffolding? Yes, they are. / No, they aren't.
Is he showing a foreign guest round the city? Yes, he is. / No, he isn't.
I am not working.
The students aren't playing football.