It will never do to spend the night here, you understand.

你知道的，在这里过夜是不行的。

youdao

I swear, I will never do that again.

我发誓，我永远不会再这样作了。

youdao

I promise I will never do this again.

我承诺(保证)不会再这样做。

youdao

As we do,we must also reaffirm that the United States is not -- and never will be -- at war with Islam."

VOA: special.2011.05.07

There will in fact never be a good time to try something new, and there will actually never be a semester where you do have that more time.

实际上我已经没有机会尝试新事物了，而且也不用过学期了,但你们有更多的时间。

哈佛公开课 - 计算机科学课程节选

The British Government will never promise to pay you 10% more each year because they can't do it.

英国政府永远都不会承诺给你们,每年支付你们高于10%的利息,因为他们根本就做不到

耶鲁公开课 - 金融市场课程节选

What those small states will never do is decide any election in the current system.

FORBES: Congrats On Your Vote, Too Bad It Probably Didn't Count

"The only thing we will never do is make a crappy product, " he said.

WSJ: Apple Defends Position on Cash

Maybe they meant it like skydiving, a thrill I personally loved but probably will never do again.

BBC: This is Seoul week