She should have asked for some help.

她本应该请求帮助的。

《牛津词典》

She should have taken me with her.

她应该带我一起去的。

youdao

Oh, if she should have died!

啊，万一她已经去世了呢！

youdao

At about this time, several people told Marian that she should have a voice teacher.

VOA: special.2009.01.18

but if you explain it to your friend that you or she should not have or should have done something,

如果你想要向你的朋友解释，或者她应该做某事的时候，

I should have 课堂 - SpeakingMax英语口语达人

She is the head TA and she's the one you should write to whenever you have a problem.

她是首席助教,只要你有疑问,都可以给她发邮件

耶鲁公开课 - 基础物理课程节选

Expert witnesses have said she should have been given a different fluid, called Hartmann's.

BBC: Hyponatraemia inquiry: Nurses giving evidence

Opposition AMs had criticised her absence as disrespectful, saying she should have "faced the music".

BBC: Bethan Jenkins AM

Instead, she should have been modeling her business after a number of already-successful prototypes.

FORBES: Connect