Question

امیدوارم بتونم لطفت رو جبران کنم

Answer 1

I hope I can return the favor.

http://www.phrasemix.com/phrases/return-the-favor

Answer 2

How can I ever repay you for all your kindness?

make it up to sb

I just hope I'll make it up to you somehow.

 

 

Answer 3

I hope I'll do back your favor.

Answer 4

I hope [someday] I'll be able to return OR repay your compliment......... do something good for you.

Answer 5

I hope I can make it up to you.