intro/guitar only bass comes in wen drums and both guitars and avril starts singing. 
 
verse 
G:-------------------------------------------------------------------| 
D:-------------------------------------------------------------------| 
A:-55-555-555-555-33-333-333-333-55-555-555-555-5-33-333-333-333-1-0-| 
E:-------------------------------------------------------------------| 
 
Chorus 
G:-------------------------------------------------------| 
D:-------------------------------------------------------| 
A:-55555555-/1010101010101010-55555555-/1010101010101010-| 
E:-------------------------------------------------------| 
theres a few ways to play the Chorus but this is the better way to do it 
slide from A:5 to A:10 you get a nice feel. 
 
bridge 
G:------------------| 
D:------------------| 
A:-33-/77-/55-/1010-| 
E:------------------| 
 
end on A:/5 
 
ok so there it is there are only 3 parts to this song. 
 
song order: 
intro (bass doesnt plat this) 
verse 
Chorus 
verse 
Chorus 
bridge 
Chorus til end