If the accidental for the note G# is to be canceled the result would be written as
Gb
F
G natural
G#b
If the accidental for the note Bb is to be canceled the result would be written as
A natural
B natural
B#
Cb
If the accidental for the note Fb is to be canceled the result would be written as
Gb
F#
F natural
E
If the accidental for the note C# is to be canceled the result would be written as
C natural
Cb
Db
D natural