He often found the opportunity to thank my father for his effort.

I should also like to thank him for his effort to find common ground, even though we might not all agree on everything.

Some would return years later to thank him for his efforts in talking them out of their decision.

She also did not thank her campaign staff for their efforts.

Of course you will have to thank them for their efforts.

I would like to thank them very much for all their efforts.

I would also like to thank him for his efforts in this matter.

I therefore thank you for your efforts in this area!

I want to personally thank you all for your effort.

Strangers thank us for our efforts as they walk by.