do you put "doing" with "efforts" or another word?

Question

I can't be more thankful to all the efforts you have been doing

My question is: in that sentence, does doing make sense? or I should use another word?

Answer 1

"Doing an effort" is not correct. You do some work and you put some effort into doing the work.

The idiomatic phrase to use here is make an effort.

I can't be more thankful for all the efforts you have made.

Note that I have also changed to to for. You are thankful to somebody for what they have done.