This song by Foreigner is in F#.
These are the “cheat” chords I played…
Part 1: D#m7 - C#/F - F# - B - D#m7
Part 2a: F# - G#m7 - C#/G# - G#m7
Part 2b: C#/G# - G#m7 (repeat several times)
Part 2c: B - F#/A# - G#m7 - F# - B/C#
Part 3: F# - C# - G#m7 - [...]
