Intro/Verse - Use this progression, strumming is easy to work out

E|---------------|
B|---------------|
G|-7-------------|
D|-x--------4--5-|
A|-5--4--5--2--3-|
E|----2--3-------|

Pre chorus - use this progression, strumming is easy to work out

E|------------|
B|------------|
G|------------|
D|------------|
A|-5--7--9--7-|
E|-3--5--7--5-|

Chorus - Use this progression, strumming is easy to work out

E|------------|
B|------------|
G|------------|
D|-6--7--4----|
A|-4--5--2--5-|
E|----------3-|

Variation at the star of the second verse - Only the chords are shown

E|------------------|
B|------------------|
G|-9--11--12--11--9-|
D|-x---x---x---x--x-|
A|-7---9--10---9--7-|
E|------------------|

After second chorus - Just muck around with these chords, the strumming 
                      isn't shown

E|----------------------------|
B|----------------------------|
G|-7--9--11--12--14--12-11--9-|
D|-x--x---x---x---x---x--x--x-|
A|-5--7---9--10--12--10--9--7-|
E|----------------------------|