This is the correct way to play it if you dont want to tune down to dropped D.

(Intro) x2 Play the last G only once the second time.
G----------------------------------------------------------------------------|
D-0000000000000000-----------------------------------------------------------|
A----------------------------------2222222222222222--------------------------|
E------------------3333333333333333----------------3333333333333333----------|

(Verse) x4
G-----------------------------------------|
D-----------------------------------------|
A-5-5-5-5------------2-2-2-2--------------|
E------------3-3-3-3------------3-3-3-3---|

(Pre-Chorus)
G----------------------------------------------------------------------------|
D-00000000-------------------------------------------------------------------|
A----------------------------------------------------------------------------|
E---------33333333/5555/77777777/8888/77777777/3333333333333333--------------|

(Chorus)
G-------------------------------------------------------------------------|
D-0000000000000000--------------------------------------------------------|
A---------------------------------2222222222222222------------------------|
E-----------------3333333333333333-----------------3333333333333333-------|

G------------------------------------------------------------------------|
D-00000-00000------------------------------------------------------------|
A--------------------------22222-22222-----------------------------------|
E--------------33333-33333-------------33333-33333-----------------------|

(After Chorus)
G----------------------------------------------------------------------------|
D-0000-0---------------------------------------------------------------------|
A----------------0000-0-2222-2-2-3333-3-2222-2-2-----------------------------|
E-------3333-3-3---------------------------------3333333333333333------------|

Repeat Verse

Repeat Pre-Chorus

Repeat Chorus

(Bridge) Listen for timing
G--------------------------------------------------------------------------|
D-5-5-3-2-0~ ------------5~ ------------0~ -------------5~ ------55--------|
A--------------------------------------------------------------------------|
E--------------------------------------------------------------------------|
(BridgeContinued)

G---------------------------------------------------------------------|
D-00000-00000---------------------------------------------------------|
A-----------------------------------22222-22222-----------------------|
E------------------33333-33333-------------------33333-33333----------|

(Repeat Chorus)

(End)
G-------------|
D-5-5-3-2-0---|
A-------------|
E-------------|