How can I ever express my thanks to you for all you've done?

对你所做的一切，我怎么才能表达谢意？

《牛津词典》

I'm writing this letter to express our gratitude to you for we have all benefited from the lecture you gave last week.

我写这封信是为了向你表达我们的感谢之情，因为我们都从您上周所做的讲座中受益良多。

youdao

This sentence pattern is great when you want to express regret for something that you perhaps did not do.

当你想表达对一些过去没做成的事情感到后悔时，你可以使用这个句型。

youdao

When it does happen, when the idea comes and you wrestle to place the words that express exactly what it is that you want to say, what it is that the meaning you're wrestling for.

当其真的发生时,你绞尽脑汁,希望写出,能准确表达它的文字，你苦思冥想，究其含义。

普林斯顿公开课 - 人性课程节选

This is great when you want to express regret for something that you perhaps did not do.

当你想表达对一些过去没做成的事情感到后悔时，你可以使用这个句型。

I should have 课堂 - SpeakingMax英语口语达人

Remember that you can use it to express a need for you to do or have something,

记住，你可以用它来表达你做某事或得到某些东西的需求，

I need 课堂 - SpeakingMax英语口语达人

If you express your love for the country, you are called "pro-war, " you are considered a right-winger.

CNN: ASIANOW - TIME Asia

Mongolians share the sincere affection for the natural beauty of the Eastern Steppe that you express, and precisely for that reason it has been designated as a special protected area.

ECONOMIST: Letters | The

American Express, for example, gives you access to more than one million worthy organisations.

BBC: Business travel gives back