To learn All-4-One - I Swear chords, begin by getting comfortable with these sequence: G, A, D, Bm, F#m, A, B, E, C#m and G#m. I suggest starting at a calm pace of 82 BPM, and as you gain confidence, approach the song's BPM of 164. With D Major as the song's key, tweak the capo to cater to your vocal pitch and chord likes.