我不该留下我的皮箱和相机包无人看管。

I should not leave my briefcase and camera bag unguarded.

《柯林斯英汉双解大词典》

对不起，我不该发脾气。

I'm sorry, I shouldn't have lost my temper.

《牛津词典》

我不该欺骗巫师的。

I shouldn't have tricked the wizard.

youdao

But we probably shouldn't say that. After all, if you shoot me, there's my corpse lying on the stage.

但是我们也许不该那么说,毕竟,假如你射杀了我,我的尸体倒在讲台上

耶鲁公开课 - 死亡课程节选

I mean that can include... you know, me... sneaking my way into an award show that I don't belong at

我的意思是那包括……我……偷偷溜进我本不该进的颁奖典礼，

向哥伦布学习 - SpeakingMax英语口语达人

.. We've done a lot-- I shouldn't say we haven't done anything-- but we can do a lot more.

我们做了很多-,我不该说我们什么都没做-,但是我们可以本做得更好。

耶鲁公开课 - 金融市场课程节选