Full and complete version

Intro and Pre-chorus ( Heavier pre-chorus is played the same but slower this is when you 
find that two is actually there).

G-------------------------------------------------------------------------|
D-------------------------------------------------------------------------|
A-------------------------------------------------------------------------|
E-3-3-3-3-2-4-1-4-6-6-6-6-7-7-7-7-7---------------------------------------|

Repeat the second and third time but with the 6s as 7s and the 7s as 8s.
Then

G-------------------------------------------------------------------------|
D-------------------------------------------------------------------------|
A-------------------------------------------------------------------------|
E-3-3-3-3-2-4-1-4-8-8-8-8-7-7-7-7-7---------------------------------------|

Verse

G------------------------|
D------------------------|
A------------------------|
E-3-3----3/-1-3-3--------|

Chorus  slide sown from the 7s at the end of the pre-chorus. Play it and you will understand.

G------------------------------------------------------------------|
D------------------------------------------------------------------|
A------------------------------------------------------------------|
E1-3-3-3-3-1-3-3-1-3-3-/12-8-8-6-8-8----------------------------|

On second and fourth

E1-3-3-3-3-1-3-3-1-3-3-/12-8-8-8-6-6-5-5-5-----------
                                   ^
                  Only tap it gently, slide up to it then down to the eight.
Bridge and the bit after ( Pause, silencehanging before the drop-off )

G---------------------------------------------------------------------|
D---------------------------------------------------------------------|
A-3-3-3-3-4-0-4-x3 then-----------------------------------------------|
E-----------------------------0 (let it ring)-------------------------|

G---------------------------------------------------------------------|
D---------------------------------------------------------------------|
A---------------------------------------------------------------------|
E-3-3-3-3-2-4-1-4-x lots----------------------------------------------|