I'd like to know what of the following phrases is appropriate in this scenario: I meet someone that talks to me about programming languages (computers) and based on that I think that he assume that I'm a programmer too. Then I have to choose one between the following:
Just to clarify, I'm not a programmer.
just for clarify, I'm not a programmer.
just for clarification, I'm not a programmer.
Which one is correct, if any?