may dupe
Regular verb: dupe - duped- duped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may dupe
you may dupe
she may dupe
we may dupe
you may dupe
they may dupe 	I may be duping
you may be duping
she may be duping
we may be duping
you may be duping
they may be duping	I may have duped
you may have duped
she may have duped
we may have duped
you may have duped
they may have duped	I may have been duping
you may have been duping
she may have been duping
we may have been duping
you may have been duping
they may have been duping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't dupe
you mayn't dupe
she mayn't dupe
we mayn't dupe
you mayn't dupe
they mayn't dupe 	I mayn't be duping
you mayn't be duping
she mayn't be duping
we mayn't be duping
you mayn't be duping
they mayn't be duping	I mayn't have duped
you mayn't have duped
she mayn't have duped
we mayn't have duped
you mayn't have duped
they mayn't have duped	I mayn't have been duping
you mayn't have been duping
she mayn't have been duping
we mayn't have been duping
you mayn't have been duping
they mayn't have been duping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I dupe?
may you dupe?
may she dupe?
may we dupe?
may you dupe?
may they dupe? 	may I be duping?
may you be duping?
may she be duping?
may we be duping?
may you be duping?
may they be duping? 	may I have duped?
may you have duped?
may she have duped?
may we have duped?
may you have duped?
may they have duped? 	may I have been duping?
may you have been duping?
may she have been duping?
may we have been duping?
may you have been duping?
may they have been duping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I dupe?
mayn't you dupe?
mayn't she dupe?
mayn't we dupe?
mayn't you dupe?
mayn't they dupe? 	mayn't I be duping?
mayn't you be duping?
mayn't she be duping?
mayn't we be duping?
mayn't you be duping?
mayn't they be duping? 	mayn't I have duped?
mayn't you have duped?
mayn't she have duped?
mayn't we have duped?
mayn't you have duped?
mayn't they have duped? 	mayn't I have been duping?
mayn't you have been duping?
mayn't she have been duping?
mayn't we have been duping?
mayn't you have been duping?
mayn't they have been duping?