G7 chord inversions
G7/B, G7/D and G7/F are the first, second and third inversions of the G7. This means that the bass tone is shifting from G to B, D or F.
Theory and information
All these chords consist of the notes G, B, D, F. The difference is that the order of notes shifts. B is the bass note in the first inversion, D is the bass note in the second inversion and F is the bass note in the third inversion.
G7/B can also be played as X20001. Another four-strings option for G7/B is XX0067. The third inversion can be played with doubled G notes as 120003.
Versions with movable barre shapes:
G7/D: 10 10 12 10 12 10
Alternative chord names
G7/F is identical with G/F.
Try in a chord progression
C - Fmaj7 - G7/D