问个英语句子

问题描述:

问个英语句子
It is high time I were saying goodbye 是我说再见的时候了
这句话中 虚拟语气用过去时我理解,但为什么还用进行时啊

the children are going into class
go into 是进入某种状态,就是说孩子们开始上课了
the children are coming out of class
come out of 有趋于完成的意思,就是说孩子们要上完课了
请采纳答案,支持我一下.