Mxtabs [http://www.mxtabs.net]
Riff 1
G--------------------------------------------------
D-------------------4-5-5-4------------------------
A-----------4-5-5-7---------7-5-5-4----------------
E-----5-5-7-------------------------7--------------

                  Riff 2
G--------------------------------------------------
D--------------------------------------------------
A----------4---------------4-----------------------
E--------5---5-3-0-----5-5---5-3-0-----------------

If you learn this, you can figure out the entire song, 
but look below; I’ve already done it.

Intro
G--------------------------------------------------
D-------------------4-5-5-4------------------------   4 times
A-----------4-5-5-7---------7-5-5-4----------------
E-----5-5-7-------------------------7--------------

Verse 1
G--------------------------------------------------
D-------------------4-5-5-4------------------------   8 times
A-----------4-5-5-7---------7-5-5-4----------------
E-----5-5-7-------------------------7--------------

Chorus
G--------------------------------------------------
D-------------------4-8-5-4------------------------   4 times
A-----------4-5-5-7---------7-5-5-4----------------
E-----5-1-7-------------------------7--------------

Post-chorus Thing
G--------------------------------------------------
D--------------------------------------------------   2 times
A----------4---------------4-----------------------
E--------5---5-3-0-----5-5---5-3-0-----------------

Verse 2
G--------------------------------------------------
D-------------------4-5-5-4------------------------   8 times
A-----------4-5-5-7---------7-5-5-4----------------
E-----5-5-7-------------------------7--------------

Chorus
G--------------------------------------------------
D-------------------4-5-5-4------------------------   8 times
A-----------4-5-5-7---------7-5-5-4----------------
E-----5-5-7-------------------------7--------------

Post Chorus/Bridge
G--------------------------------------------------
D--------------------------------------------------   6 time
A----------4---------------4-----------------------
E--------5---5-3-0-----5-5---5-3-0-----------------

G--------------------------------------------------
D-------------------4-5-5-4------------------------   3 times
A-----------4-5-5-7---------7-5-5-4----------------
E-----5-5-7-------------------------7--------------

then

G-----------------------
D--------------5--------
A-------55--------------
E--55-------------------

Chorus
G--------------------------------------------------
D-------------------4-5-5-4------------------------   8 times
A-----------4-5-5-7---------7-5-5-4----------------
E-----5-1-7-------------------------7--------------

Outro
G--------------------------------------------------
D-------------------4-5-5-4------------------------
A-----------4-5-5-7---------7-5-5-4----------------
E-----5-1-7-------------------------7-7------------