几曾

zhè yàng de qíng kuàng jǐ céng yǒu guò

这样的情况几曾有过？

When has there been a situation like this before?

zài tā zhòng bìng qī jiān wǒ jǐ céng ān shuì guo yī wǎn

在他重病期间，我几曾安睡过一晚。

During the time he was severely ill, I didn't sleep well for a single night.

wǒ bù jì de wǒ jǐ céng jiè guò tā de shū

我不记得我几曾借过他的书。

I don't remember when I ever borrowed his book.

zhè jiàn shì nǐ jǐ céng wèn guo wǒ

这件事你几曾问过我？

You never asked me about it, did you?

wǒ jǐ céng qù guo tā jiā

我几曾去过她家？

When on earth did I go to her home?