I need more time in order to finish and comment your chapter 2 na kha. So, I think I can't give you comments on time (on 19th March 2015). However, I suggest that you should submit this version to Kru Kob first and I am working on your paper later.
Try to translate What I have said na... I know you can do it, anyway if you're not understand what I have written well, please feel free to call me or Line me as usual.