As a boy George Washington supposedly told his father: "I cannot tell a lie.

VOA: special.2010.02.23

I will be happy to admit that I read through this I probably cannot tell you what it did unless I really obsessed over these details.

我不得不承认，恐怕我读完后,也不能告诉你它都干了些什么,除非我完完全全被这些细节给迷住了。

哈佛公开课 - 计算机科学课程节选

I cannot tell because I have never aged as other men do.

VOA: special.2010.07.10

But he said he is ready. "I cannot tell you exactly when I will be seated, but I think it will be early next week,"

VOA: standard.2009.06.30

"My office is closed. I have to tell my patients I cannot be in France.

VOA: standard.2010.04.19