may scratch
Regular verb: scratch - scratched- scratched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may scratch
you may scratch
she may scratch
we may scratch
you may scratch
they may scratch 	I may be scratching
you may be scratching
she may be scratching
we may be scratching
you may be scratching
they may be scratching	I may have scratched
you may have scratched
she may have scratched
we may have scratched
you may have scratched
they may have scratched	I may have been scratching
you may have been scratching
she may have been scratching
we may have been scratching
you may have been scratching
they may have been scratching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't scratch
you mayn't scratch
she mayn't scratch
we mayn't scratch
you mayn't scratch
they mayn't scratch 	I mayn't be scratching
you mayn't be scratching
she mayn't be scratching
we mayn't be scratching
you mayn't be scratching
they mayn't be scratching	I mayn't have scratched
you mayn't have scratched
she mayn't have scratched
we mayn't have scratched
you mayn't have scratched
they mayn't have scratched	I mayn't have been scratching
you mayn't have been scratching
she mayn't have been scratching
we mayn't have been scratching
you mayn't have been scratching
they mayn't have been scratching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I scratch?
may you scratch?
may she scratch?
may we scratch?
may you scratch?
may they scratch? 	may I be scratching?
may you be scratching?
may she be scratching?
may we be scratching?
may you be scratching?
may they be scratching? 	may I have scratched?
may you have scratched?
may she have scratched?
may we have scratched?
may you have scratched?
may they have scratched? 	may I have been scratching?
may you have been scratching?
may she have been scratching?
may we have been scratching?
may you have been scratching?
may they have been scratching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I scratch?
mayn't you scratch?
mayn't she scratch?
mayn't we scratch?
mayn't you scratch?
mayn't they scratch? 	mayn't I be scratching?
mayn't you be scratching?
mayn't she be scratching?
mayn't we be scratching?
mayn't you be scratching?
mayn't they be scratching? 	mayn't I have scratched?
mayn't you have scratched?
mayn't she have scratched?
mayn't we have scratched?
mayn't you have scratched?
mayn't they have scratched? 	mayn't I have been scratching?
mayn't you have been scratching?
mayn't she have been scratching?
mayn't we have been scratching?
mayn't you have been scratching?
mayn't they have been scratching?