It's mostly picking notes out of those chords throughout the song 
CAPO 4th fret... all chord names referred to are going to be just positions relative to the capo

Em (0,2,2,0,0,0)
F#/D(2,0,0,2,3,2)
Cadd9 (x,3,2,0,3,0)
G (3,2,0,0,3,3)
F#/Dsus4 ( 2,0,0,2,3,3)
Cadd9* (x,3,2,0,3,3)
Am (x,0,2,2,1,0)
Bm (x,2,4,4,3,2)

the F#/D(2,0,0,2,3,2) can be substituted with an F#/Dadd9 (2,0,0,2,3,0)

Tabbed by: Aya

Here's a picking pattern I play for the verse

Em            F#/D       Cadd9     Cadd9    
|-----------------------------0-----------0-----|
|------0-----------3------------3----------3----|
|---0---0-------2---2------0------0----0----0---|
|--2-2---2-----0-0---0----2-2---------2-2-------|
|---------2-----------0--3----------3-----------|
|0------------2---------------------------------|

Verse:

Em           F#/D    Cadd9
You thought we'd be fine

Em        F#/D       Cadd9
All these years gone by

Em                     F#/D                           Cadd9
Now you're asking me to listen well then tell me bout everything

Em            F#/D   Cadd9
No lies, We're losing time

Chorus:
                G
cause this is a battle

             F#/Dsus4   Cadd9*   
and its your final last call

          G
it was a trial

           F#/Dsus4   Cadd9* 
you made a mistake we know


               Am
why aren't you sorry

               Bm    Cadd9*
why aren't you sorry why

               G
this could get better

          F#/D
we can be happy

   Cadd9*
try


Verse:
Em              F#/D    Cadd9 (play this for the rest of the verse)
you've got them on your side
and they wont change their minds
now its over and I'm feeling like I missed out on everything
I just hope It's worth the fight