may biff
Verbo regular: biff - biffed- biffed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may biff
you may biff
he may biff
we may biff
you may biff
they may biff 	I may be biffing
you may be biffing
he may be biffing
we may be biffing
you may be biffing
they may be biffing	I may have biffed
you may have biffed
he may have biffed
we may have biffed
you may have biffed
they may have biffed	I may have been biffing
you may have been biffing
he may have been biffing
we may have been biffing
you may have been biffing
they may have been biffing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not biff
you may not biff
he may not biff
we may not biff
you may not biff
they may not biff 	I may not be biffing
you may not be biffing
he may not be biffing
we may not be biffing
you may not be biffing
they may not be biffing	I may not have biffed
you may not have biffed
he may not have biffed
we may not have biffed
you may not have biffed
they may not have biffed	I may not have been biffing
you may not have been biffing
he may not have been biffing
we may not have been biffing
you may not have been biffing
they may not have been biffing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I biff?
may you biff?
may he biff?
may we biff?
may you biff?
may they biff? 	may I be biffing?
may you be biffing?
may he be biffing?
may we be biffing?
may you be biffing?
may they be biffing? 	may I have biffed?
may you have biffed?
may he have biffed?
may we have biffed?
may you have biffed?
may they have biffed? 	may I have been biffing?
may you have been biffing?
may he have been biffing?
may we have been biffing?
may you have been biffing?
may they have been biffing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not biff?
may you not biff?
may he not biff?
may we not biff?
may you not biff?
may they not biff? 	may I not be biffing?
may you not be biffing?
may he not be biffing?
may we not be biffing?
may you not be biffing?
may they not be biffing? 	may I not have biffed?
may you not have biffed?
may he not have biffed?
may we not have biffed?
may you not have biffed?
may they not have biffed? 	may I not have been biffing?
may you not have been biffing?
may he not have been biffing?
may we not have been biffing?
may you not have been biffing?
may they not have been biffing?