usage

[Unregistered]

what is the sentence to be used in the condition of saying thanks to someone but they did not succeed on that, though they tried.

need a professional answer.

[Anglika]

"I am most grateful for your efforts in this matter, and hope that on another occasion it/we/they will be successful."

It would help a lot to know more about the context of this.

[BobK]

"I am most grateful for your efforts in this matter, and hope that on another occasion it/we/they will be successful."

It would help a lot to know more about the context of this.

Colloquially, you could say 'Thanks anyway' or 'Thanks for trying'. (As Anglika says, context would help.)

b