[译] 他要求我们大家要准时。
[误] He requested that all of us were punctual.

[正] He requested that all of us should be punctual.
[注] 根据 request 的用法要求，后面跟的 that 从句，不能用陈述语气，其谓语动词必须用 “should + 动词原形” 表示虚拟语气。