~ those chords have been written by hearing so there might will be a few mistakes ~
[ Tab from: https://www.guitartabs.cc/tabs/b/bruno_mars/if_i_knew_crd_ver_2.html ]
G D
Oh Oh Oh I... I was a city boy
C Cm
Right into danger's where I'd always run, a boy who had his fun
G
But I wouldn't have done
Em A
All the things that I have done
D G
If I knew one day you'd come...
C Cm G
Now baby, Now baby, Now baby, Now baby
D G D
Oh Oh Oh I... I know it breaks your heart
C Cm
To picture the only one you wanna love in someone else's arms
G
But I wouldn't have done
Em A
All the things that I have done
D G
If I knew one day you'd come...
C Cm G ( G7 )
Now baby, Now baby, Now baby, Now baby
G Am C Em
Ooh baby please, let's leave the past behind us, behind us
C Em
So that we, can go where love will find us, it'll find us
A C D
I know most girls would leave me, but I know that you believe me
G D
Baby I... I wish we were seventeen...
C Cm
So I could give you all the innocence, That you gave to me
G
No I wouldn't have done
Em A
All the things that I have done
D G
If I knew one day you'd come...
C Cm G
If I knew one day you'd come
enjoy! :)