Had they left before you got there?

你到那里时他们已经离开了吗？

《牛津词典》

They had to tell Peter of Tink's crime, and almost never had they seen him look so stern.

然后，他们不得不把小叮当的罪行告诉彼得，他们几乎从来没有见过他这么严厉。

youdao

Scarcely had they set foot on the threshold, when Tom called out, "Don't bring me any more hay!"

他们刚一踏进门槛，汤姆就喊道：“别再给我拿草料了！”

youdao

I could not bear the bees should come, I wished they'd stay away In those dim countries where they go: What word had they for me?

VOA: special.2010.07.18

It's as if they might have maintained their beauty had they only refrained from it.

好像她们避免政治,就能永葆美丽似的。

耶鲁公开课 - 现代诗歌课程节选

But they had forgotten about the connection, to themselves and what was really true for them, and being themselves.

但他们忘掉了那种联系，和自己的联系以及对自己而言最真实的东西，忘掉了自我。

普林斯顿公开课 - 人性课程节选

But who knows what would have happened had they not done these massive repurchases.

FORBES: Connect

They would be better off had they hedged against higher oil prices years ago.

FORBES: A Shield Against The Next Oil Shock

Had they paid out less, capital appreciation would, in theory, have been commensurately higher.

ECONOMIST: Stockmarkets and dividends