Verse
E-----------------------------------------------------------------]
A-----------------------------------------------------------------]
D--9999999999999994444444444444444--------------------------------]
G---------------------------------44444444444444447777777777777777]

Pre-Chorus
E----------------------------------------------------------]
A----------------------------------------------------------]
D----------2---------------44444444--------2-------4-------]
G--4---------------2---------------4-----------------------]

Chorus
E------------------------------------------------------------------]
A------------------------------------------------------------------]
D--99999999999999994444444444444444----------------2---------------]
G----------------------------------4444444444444444----------------]

Last chorus
E------------------------------------------------------------------]
A------------------------------------------------------------------]
D--9999999999999994444444444444444---------------------------------]
G---------------------------------444666777-11-11-11-11-11-11-11-11]

E-----------------------------------------]
A-----------------------------------------]
D-----------------------------------------]
G--777999-11-11-11-15-15-15-15-15-15-15-15]

I think this is how it's played. Just listen carefully and you'll get it.
(The double digits are played continuously.