it is high time that 可以接should 加动词原形吗?it is high time 和 it is about time 后面到底能不能接should 加动词原型啊?我的高中老师说可以接两种形式 即过去式 还有should加动词原形但是我的大学老师

it is high time that 可以接should 加动词原形吗?
it is high time 和 it is about time 后面到底能不能接should 加动词原型啊?
我的高中老师说可以接两种形式 即过去式 还有should加动词原形
但是我的大学老师说只能接过去式 并且我最近做的题目中两个选项都有 结果选过去式
哪位大虾能给个准确的答复啊?

it is high time 只是过去式.
我从初中学英语到几年前读研,见过的都是这样的.
It is about time that some restrictions were placed on the use of this intrusive technology.
As a bereaved sister, it is about time epilepsy and its potential consequences was treated with more respect.
It is high time you took a grip of your party and led it properly.
"It is high time the DTI was restructured and given a new remit, " he said.