Someone on here already made a really good hash at the intro, unfortunately they don't 
an account so I can't credit them for it but here is their intro.

Capo on fifth fret

e|--------0------4------2-0----2-0--|
B|---------0------5-----------------|
G|-------------2--------------------| x 3, and on the last one end with
D|--------------------2-------2-----|
A|----------------------------------|
E|---0h2----------------------------|

e|---------------------|
B|---------------------|
G|---------------------|
D|---4--2--------------|
A|----------4----2-0---|
E|---------------------|

The chords are basically like this, I don't the exact name for them but I will write 
root notes, relative to capo and the actual root note in brackets.

e|-0------0-----0---------|
B|-0------0-----0---------|
G|-1------1-----2/1-------|
D|-2------2-----2---------|
A|-2------x-----0---------|
E|-0------2---------------|

  E(A)   F#(B)  A(D)

You can pick and choose for the G string note on the A chord, both sound good and I 
they alternate between both, play about with that.

For the chords I'll just use the relative to capo root notes.

E                    F#
Sooner or later i'm going to forget

A
leaving without a trace

    E              F#
when everything is how it should be

     A
i'm going to hide my face

Chorus

F#       A          E
    I'm Going to Forget        x4


It's a lot of repeating and getting a good feel for it because it's pretty basic stuff 
Have fun with it.

Lyrics:
Sooner or later i'm going to forget
leaving without a trace
when everything is how it should be
i'm going to hide my face

she thinks she knows me like no other
but there are some things i have said
that come from a place that traces its tracks
and now i'm taking them back

i'm going to forget
i'm going to forget
i'm going to forget
i'm going to forget

and now i can't help but feel this way
can't keep my mind from rolling
i know my thoughts are not with you
they're wherever i am going

so please, oh please send a warning for me
to anyone you care for
i come with the dust
and go with the wind
never to be back again