• l really appreciated your help the other day.
  前幾天我真的很感謝你的幫助。
• We are always very appreciative of your efforts.
  我們始終非常感謝你的努力。
• We very much appreciate your help with this.
  我們非常感謝您對此的幫助。
• Please allow me to express my appreciation for your help.
  請允許我對您的幫助表達謝意。
• We do appreciate your business.
  感謝您的惠顧。

• l would appreciate your help with this.
  我會非常感謝你對此的協助。
• Your help with this would be much appreciated.
  我們將十分感激您對此的幫助。
• We would very much appreciate it if you could help us.
  如果您能提供協助，我們將不勝感激。
• Any advice you can give would be greatly appreciated.
  任何你能給的建議都很感激。

注意，請求協助時，助動詞都會用 would。

• l appreciate your concerns, but l’m afraid l am not able to help you.
  謝謝你的關心，但恐怕我沒辦法幫助你。