may muff
Regular verb: muff - muffed- muffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may muff
you may muff
she may muff
we may muff
you may muff
they may muff 	I may be muffing
you may be muffing
she may be muffing
we may be muffing
you may be muffing
they may be muffing	I may have muffed
you may have muffed
she may have muffed
we may have muffed
you may have muffed
they may have muffed	I may have been muffing
you may have been muffing
she may have been muffing
we may have been muffing
you may have been muffing
they may have been muffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not muff
you may not muff
she may not muff
we may not muff
you may not muff
they may not muff 	I may not be muffing
you may not be muffing
she may not be muffing
we may not be muffing
you may not be muffing
they may not be muffing	I may not have muffed
you may not have muffed
she may not have muffed
we may not have muffed
you may not have muffed
they may not have muffed	I may not have been muffing
you may not have been muffing
she may not have been muffing
we may not have been muffing
you may not have been muffing
they may not have been muffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I muff?
may you muff?
may she muff?
may we muff?
may you muff?
may they muff? 	may I be muffing?
may you be muffing?
may she be muffing?
may we be muffing?
may you be muffing?
may they be muffing? 	may I have muffed?
may you have muffed?
may she have muffed?
may we have muffed?
may you have muffed?
may they have muffed? 	may I have been muffing?
may you have been muffing?
may she have been muffing?
may we have been muffing?
may you have been muffing?
may they have been muffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not muff?
may you not muff?
may she not muff?
may we not muff?
may you not muff?
may they not muff? 	may I not be muffing?
may you not be muffing?
may she not be muffing?
may we not be muffing?
may you not be muffing?
may they not be muffing? 	may I not have muffed?
may you not have muffed?
may she not have muffed?
may we not have muffed?
may you not have muffed?
may they not have muffed? 	may I not have been muffing?
may you not have been muffing?
may she not have been muffing?
may we not have been muffing?
may you not have been muffing?
may they not have been muffing?