There is basicly 4 chords running in this song.
[ Tab from: https://www.guitartabs.cc/tabs/d/down_with_webster/your_man_crd_ver_2.html ]
C# Ab/G# C Fm
And if you want me girl, I will be your man
C# Ab/G# C Fm
And if you want me girl, I will be here forever
C# Ab/G# C Fm
And if you want me girl, I will be your man
C# Ab/G# C Fm
And if you want me girl, I will be here forever
And it just goes like that all the way.
For piano players, Best played with an Harpsichord effect
C# = Normal chord (C#-F-G#)
Ab/G# = Second inversion (D#-G#-C)
C = Normal Chord (C-E-G)
Fm = Second Inversion (C-F-G#)
You can add an F note right after de Fm Chord