Usual reason for a person whether or not true dedication to a relationship, talking about breaking up, she will be sad.

照常理来说，一个人无论是否真心投入一段感情，在说分手的时候，她也会伤感。

youdao

You do not know whether what you're told is true or false.

你不知道别人告诉你的是真的还是假的。

《柯林斯英汉双解大词典》

The jury is out on whether or not this is true.

这是否属实尚无定论。

《柯林斯英汉双解大词典》

It made no difference whether the criticism was true or not.

VOA: special.2009.04.20

We are honoring instead the integrity of what they're saying without thinking about whether or not it might be true.

我们事实上反而在,尊重他们所说内容的真实性,却从未想过这到底是不是真的。

耶鲁公开课 - 文学理论导论课程节选

Now whether or not any of this is true, believe me, is neither here nor there.

不管这些正确与否，相信我，关键不在于此。

耶鲁公开课 - 文学理论导论课程节选

And you could either say whether it was true or not true?

CNN: Transcript: White House Counsel Ruff's opening statement

Whether or not that is true, the piquetero problem is showing no sign of fading away just yet.

ECONOMIST: Kirchner's dilemma over the piqueteros

Whether or not this is true, the Iranians were certainly conveying a message.

ECONOMIST: Iran and Iraq: Neighbour, and enigma | The