verse: G major, F minor, G major, Bb major
chorus: F minor
<edit> ehhhh. I take that back, and go with OMD on the last post: Eb major works as well for all of the modulations, and keeps it simpler conceptually. It's a constant back and forth, including in the outro as it shifts to Cm (vi of Eb) and back to G.
<reedit> OMD, what Gm chord? None CF the way I do it.
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