This song by Five For Fighting is in G.
Note that Part 2b(i) and Part 2b(ii) differ only in timing.
These are the “cheat” chords I played…
Intro: G2 - C2 - Em7 - D
Part 1a: G2 - C2 - Am7 - C/D
Part 1b: Bm7 - Em7 - Am7 - C/D
Part 2a: G2 - D - C2
Part 2b(i): Em7 - D - C2
Part 2b(ii): Em7 - D - C2
Part 3a: C2 - D - Em7 - F2
Part 3b: C2 - D - G2
