Well I'm not sure if this is right but plz make any corrections to it if you have better ideas...
Main Riff:
G--------------------------------------|
D-------------------3--3-----5---5---5-|
A-0-0-0-0-0-0-0--3-3-3---5-5---5---5---|
E--------------------------------------|
That's the best I can do just because it's my first tab...