The notes are pretty easy to find once you have these chords.  Not sure about the 
A flat, but it works for me.


(Cm)
I wish I could go back, go back in 
(B flat)
time.

(Cm)
I wish I could go back, go back in 
(B flat)
time.

Go back in 
(Cm)
time,

(A flat)
I would show you, those people are
(E flat)
evil.  And it's hard to
(B flat)
understand.  I'll never
(Cm)
understand.