Student or Learner
1) I am studying English this year.
2) I am studying English for 1 year.
3) I have been studying English for 1 year.
I know that #1 and #3 are correct in grammar and meaning, but I was wondering if #2 is also possible? If so, how can we distinguish between #2 and #3?
Thank you for your time and help as usual and have a good day.