The bass doesn"t come in until the pre-chorus. 

Pre-chorus

G|--------0--0-------------0--0--------------0--0-----------------0--0-----0|
D|--------------------------------------------------------------------------|
A|--2--2----------2--2-------------2--2-------------------2--2----------2---|
E|--------------------------------------------------------------------------|

Chorus

G|----------------------0-0--0-------------|
D|-0-0--0-------------------------0-2-4-2-0|
A|----------2-2--2-------------------------|  X4
E|-----------------------------------------|


Bridge

G|--------------------------------------------------------------------------|
D|-77777777777777-999999999999999-5555555555555-9999999999999---------------|
A|--------------------------------------------------------------------------|
E|--------------------------------------------------------------------------|

G|--------------------------------------------------------------------------|
D|-77777777777777-999999999999999-555555555555555555555555555555555555555555|
A|--------------------------------------------------------------------------|
E|--------------------------------------------------------------------------|