You didn't ever tell meany thing about that.

你没告诉过我这件事。

For example, instead of saying " You didn't close the window before you left." you can say " The window was left open all night." They'll learn from their mistake and you won't seem like a meany pointing the finger.

例如，不要说“你走之前没有关窗”，你可以说“窗整晚都开着”。他们己的错误中吸取教训，而你也不像个指手画脚的恶人。