你不应该骗我。我知道这件事不可能。

You shall not deceive me. I know the thing to be impossible.

youdao

简而言之，我知道这件事。

In short, I know it.

youdao

我知道我们能做成这件事而且会很开心。

I knew we could make a go of it and be happy.

《柯林斯英汉双解大词典》

What would he say?" And I said, "That last thing is what you can't get, Carlo. Nobody can get to that last thing.

看他怎么说“，我说“你想知道的最后这件事没法知道，卡洛，没人能知道的。

耶鲁公开课 - 1945年后的美国小说课程节选

I don't know if it's possible to finish this by the end of today.

我不知道我们能不能在今天之内把这件事做完。

I don't know 课堂 - SpeakingMax英语口语达人

Common knowledge is: "I know something, you know it, you know that I know it, I know that you know it, I know that you know that I know it, etc., etc. etc.: an infinite sequence.

共同知识是指,我知道一件事,你也知道这件事,你知道我知道这件事,我也知道你知道这件事,我知道你知道我知道这件事,以此类推,一个无限的循环

耶鲁公开课 - 博弈论课程节选