This question is obviously not for native English speakers - they don't have this problem.
It's addressed to all of us other developers which English is not our native language.
When you write code - do you use your native language for stuff like variable names, or strictly using English?
Personally, I use only English in code, but I've seen plenty of code examples where the variable are named in a language I don't recognize.
What do you prefer, and why?