Why it could be improved:
* Missing Subject: The sentence is missing a subject. It's unclear who is expressing this appreciation.
* Informal Tone: While grammatically correct, the phrase sounds a bit informal. It might be better to use a more formal tone, especially in a professional setting.
How to improve it:
Here are some ways to make the phrase more formal and clear:
* Add a subject: "We express our sincere appreciation for your contribution to our association."
* Use a different verb: "We are sincerely grateful for your contribution to our association."
* Add a specific detail: "We sincerely appreciate your [specific contribution] to our association."
Example:
"On behalf of the [association name], we extend our sincere gratitude for your generous donation to our annual fundraising drive."
By adding a subject, using a stronger verb, and including more specific details, you can create a more impactful and professional expression of appreciation.