may staff
Regular verb: staff - staffed- staffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may staff
you may staff
she may staff
we may staff
you may staff
they may staff 	I may be staffing
you may be staffing
she may be staffing
we may be staffing
you may be staffing
they may be staffing	I may have staffed
you may have staffed
she may have staffed
we may have staffed
you may have staffed
they may have staffed	I may have been staffing
you may have been staffing
she may have been staffing
we may have been staffing
you may have been staffing
they may have been staffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't staff
you mayn't staff
she mayn't staff
we mayn't staff
you mayn't staff
they mayn't staff 	I mayn't be staffing
you mayn't be staffing
she mayn't be staffing
we mayn't be staffing
you mayn't be staffing
they mayn't be staffing	I mayn't have staffed
you mayn't have staffed
she mayn't have staffed
we mayn't have staffed
you mayn't have staffed
they mayn't have staffed	I mayn't have been staffing
you mayn't have been staffing
she mayn't have been staffing
we mayn't have been staffing
you mayn't have been staffing
they mayn't have been staffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I staff?
may you staff?
may she staff?
may we staff?
may you staff?
may they staff? 	may I be staffing?
may you be staffing?
may she be staffing?
may we be staffing?
may you be staffing?
may they be staffing? 	may I have staffed?
may you have staffed?
may she have staffed?
may we have staffed?
may you have staffed?
may they have staffed? 	may I have been staffing?
may you have been staffing?
may she have been staffing?
may we have been staffing?
may you have been staffing?
may they have been staffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I staff?
mayn't you staff?
mayn't she staff?
mayn't we staff?
mayn't you staff?
mayn't they staff? 	mayn't I be staffing?
mayn't you be staffing?
mayn't she be staffing?
mayn't we be staffing?
mayn't you be staffing?
mayn't they be staffing? 	mayn't I have staffed?
mayn't you have staffed?
mayn't she have staffed?
mayn't we have staffed?
mayn't you have staffed?
mayn't they have staffed? 	mayn't I have been staffing?
mayn't you have been staffing?
mayn't she have been staffing?
mayn't we have been staffing?
mayn't you have been staffing?
mayn't they have been staffing?