The general pattern for this song is G D Am Em C G D B7 Em G C Em Am C D7. 
Although, you can skip the d7 when you?re playing the ?over the?..over the? part.

  G         D  
Over the houses
Am                     Em
The streets and the trees
C            G            D
Over the dogs down below
           B7         Em      
They'll bark at our shadows
     Am          C           D7
As we float by on the breeze

D               Am      
Tonight we fly
Em         C          
Over the chimney tops
G                D
Skylights and slates ?
B7               Em
Looking into all your lives
Am                 C
And wondering why
D7                           G
Happiness is so hard to find

G           D        Am       Em
Over the doctor, over the soldier
C           G     D     B7      
Over the farmer, over the poacher
Em          G        C        Em
Over the preacher, over the gambler
Am            C        G        D
Over the teacher, over the rambler
Am         Em       C        G
Over the lawyer, over the dancer
D           B7       Em           G       C         Em
Over the voyeur, over the builder and the destroyer,
Am         C           D7        G
Over the hills and far away

D       Am
Tonight we fly
Em           C
Over the mountains
G                  D
The beach and the sea
B7          Em         G
Over the friends that we've known
       C                Em
And those that we now know
Am           C        D7       G
And those who we've yet to meet

D           Am
And when we die
Em   G        C
Oh, will we be
D        B7
That disappointed
Em   
Or sad
G                  C
If heaven doesn't exist
Em                  Am
What will we have missed
 C                             D7   
This life is the best we've ever had

You can also make it more original at the end by strumming the D7 down and start 
the decrease the speed and then finally add the G.