G major - 1 vi ii 5 which is: Gmaj - Emin - Amin - Dmaj

Borrowed chords in G maj - 1 vi ii 5

G major 1 5 vi 4 which is: Gmaj - Dmaj - Emin - Cmaj

Borrowed chords in G maj - 1 5 vi 4

G major (with b7) 1 5 b7 4 5 which is: Gmaj - Dmaj - Fmaj - Cmaj - Dmaj

G major - 1 5 4 b6 5 which is: Gmaj - Damj - Cmaj - Ebmaj - Dmaj

G major - 1 5 vi 4 which is: Gmaj - Dmaj - Emin - Cmaj with lead in G major.

G major (with b7) 1 5 b7 4 5 which is: Gmaj - Dmaj - Fmaj - Cmaj - Dmaj with lead in G major.

G major (with b7) 1 5 b7 4 5 which is: Gmaj - Dmaj - Fmaj - Cmaj - Dmaj with lead in G mixolydian.

G major - 1 5 4 b6 5 which is: Gmaj - Damj - Cmaj - Ebmaj - Dmaj with lead in G major.