Dukkha Intro Chords

This is the chords for the sound dukkha from avicii hope you like it! ps: its my first tab. :) starts with Bb then the accoustic comes Bb G F E Then an electro part and again: Bb G F E Im not so good at the guitar but i discovered the chords by listening to the music and then i decided to post it, if something is wrong correct me :)