an alternative to : I´ll do it
I usually answer by saying : Ok I´ll do it , when my teacher tells me to change something in the way I write or talk or whatever.
However I think it is not very natural to say, (And correct me if I am wrong, but Native people do not seem to answer like this , do they?

So, how else could I reply? THe idea is to make the person clear you will work to sort that thing out.

Thanks

Question

an alternative to : I´ll do it
I usually answer by saying : Ok I´ll do it ,   when my teacher tells me to change something in the way I write or talk or whatever.
However I think it is not very natural to say, (And correct me if I am wrong, but Native people do not seem to answer like this , do they?

So, how else could I reply?  THe idea is to make the person clear you will work to sort that thing out.

Thanks

Answer

When someone asks me to do something, I usually just say, "Okay."

Answer

This is the sort informal language that native languages don't think twice about.

If someone asked me to change something,  I might say something like:

Sure, I can do that, no problem.

Or: Sure, I can do that. Don't worry, I'll take care of it.

Answer

* I'm on it 
* right away 
* sure thing 
* let that to me 
* as soon as I can 
* don't ask twice 
* and my preferred: no thanks.