Perfect Authentic Cadences Imperfect Auth. Cad. Keyboard Harmony   William Wieland
The 2nd & penultimate examples at the following web pages:
  • Major Cadence Patterns:   Close Position   Open Position
  • Minor Cadence Patterns:   Close Position   Open Position
  • Cadential Six-Four   Pedal Six-Four   Arpeggiated Six-Four
  

The 2nd Augmented Dominant example
All other examples at the following web pages:
  • Major Cadence Patterns:   Close Position   Open Position
  • Minor Cadence Patterns:   Close Position   Open Position
  • Cadential Six-Four   Pedal Six-Four   Arpeggiated Six-Four
  • All Passing Six-Four examples

All other Diminished & Augmented examples