If you want a short summary
Verses are G5 and Bm. 
Pre-Biss is E5 , C5 , G5 inversion, D. 
Biss is C5 , E5 , G5 inversion, D5 , A5 , E5 , G5 inversion, D.
You try it yourself.. :)

G5                                               B5
Hands over my head thinking what else could go wrong?
G5                                            B5
Would have stayed in bed, how can the day be so long?

Pre-Chorus
E5                    C5                  G5  D5
Never believed that things happen for a reason
    E5                     C5                         G5      
But how this turned out removed all my doubts, so believe 
      D5
That for you I'd do it 

Chorus:  
     C5    E5
All over again
           G5     D5
Do it all over again
             A5               E5
All I went through, led me to you
                  G5     D5 
So I'd do it all over again 
     G5
For you
 
Interlude
G5 E5 B5

Verse 2:
G5                                                    B5
I missed the first train, stood out in the rain, all day

Little did I know
     G5                                                    B5                
When I caught the next train, there you were to sweep me away
 
Guess thats what I waited for
E5                    C5                    G5  D5 
Never believed that things happened for a reason
    E5                      C5                         G5  
But how this turned out, removed all my doubts, so believe
      D5
That for you I'd do it 

Chorus 
     C5    E5
All over again
           G5     D5
Do it all over again
              A5               E5
All I went through, led me to you
                  G5     D5 
So I'd do it all over again 


Bridge: 
(Oohh)
 F5                               C5                       G5
Who ever thought a day gone so wrong, would turn out so lovely
 
Im so glad I found you
 F5                           C5                           D5
Even though the day went so wrong, I wouldn't change a thing 
(yeah, I'd do it all)
 
                
Chorus
               C5    E5
I'd do it all over again
(yeah yeah yeah)
           G5     D5
Do it all over again 
             A5               E5
All I went through, led me to you 
                  G5    D5
So I'd do it all over again
               C5    E5
I'd do it all over again (over again)
           G5    D5
Do it all over again
             A5               E5 
All I went through, led me to you
                   G5    D5
so I'd do it all over again (over, over again)


 G5                                                        B5
Who ever thought a day gone so wrong, would turn out so lovely

(oooh hmm )
 G5                                                        B5
Who ever thought a day gone so wrong, would turn out so lovely

Fade out.. :)