hi,i recieved my green card for almost 3 years.i am medical student and when i recieved my green card i was student,i frequently travel to my own country and usa to keep my green card and finish my university.if i want to continue my education in usa i need my degrees so i should first graduated in my own country,my problem is that i tarvel a lot to usa and i live with my aunt and she supports me very good,and so i dont have any job because i dont need job until my graduation.because of this i didn't fill any tax form.yesterday i saw in internet that every residents should fill tax form,i want to know that what should i do?is it necessary
thanx
thanx