It is high time 怎么用啊,后面接什么?

It is high time 怎么用啊,后面接什么?
It is high time 怎么用啊,后面接什么?

It is high time 怎么用啊,后面接什么?
It is (high) time that 后面的从句谓语动词要用过去式或用should加动词原形,但should不可省略.如：
It is time that the children went to bed.
It is high time that the children should go to bed.

用虚拟语气，两种，一是，一般过去式；二是，should加动词原形，should不可以省略
意思是一样的，没有差别