THis is a simplier version of the song:
Intro:
g---------
d-------0-     x2
a---3-----
e-3---0---

Verse:
g--------------
d-------0---0--       x2
a---------3---3
e-3-2-0--------

Prechorus:
g----------------
d---0-----------0
a-3-----------3--
e-----0-2-0-2----

Chorus:
g--------------------------------
d-------0---0---0-------0---0----
a---------3---33----------3---3--
e-3-2-0-----------3-2-0---------3

Repeat intro once
Verse: repeat verse

prechorus: repeat prechorus
chorus: repeat chorus
but don't play the last G note (e-3) or at yours
instead:
g------------------
d------------------
a-----~320-----~323
e-3-2-~----3-2-~---

the ~ designates an offbeat pause

repeat 1st prechorus and verse