So I may, so I can
So I may, so I can, so that I may, etc...
How would you say in spanish "so that I can ... do something"
Like for example, if someone asks:
Bob: Why do you learn spanish?
John: So I can speak. So that I may speak with people.
Why do you eat? So I can get fat.
Why do you read? So that I may learn ...
Why do you exercise? So I can run faster.
Is there a translation for that?
2 Answers
I would say that there are really two ways of translating that. Whenever you say so that I can do such and such, I would use "para poder." Por qué estudias? Estudio para poder hablar. But you could also translate it para que pueda hablar... But I think that you would use that with the translation "so that I may." That's subjunctive.
Why do you read? So that I may learn. Por qué lees? para que yo pueda aprender. I would say that you should use "para poder" when you want to say "so that I can" and use "para que (yo) pueda" when you want to "so that I may." 
= I learn Spanish so that I may be able to speak (Spanish) with other people
= Aprendo español para que pueda hablar español con otras personas
so that I may this grammatical construction is translated with the subjunctive mood
