may spiff
Verbo regular: spiff - spiffed- spiffed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may spiff
you may spiff
he may spiff
we may spiff
you may spiff
they may spiff 	I may be spiffing
you may be spiffing
he may be spiffing
we may be spiffing
you may be spiffing
they may be spiffing	I may have spiffed
you may have spiffed
he may have spiffed
we may have spiffed
you may have spiffed
they may have spiffed	I may have been spiffing
you may have been spiffing
he may have been spiffing
we may have been spiffing
you may have been spiffing
they may have been spiffing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not spiff
you may not spiff
he may not spiff
we may not spiff
you may not spiff
they may not spiff 	I may not be spiffing
you may not be spiffing
he may not be spiffing
we may not be spiffing
you may not be spiffing
they may not be spiffing	I may not have spiffed
you may not have spiffed
he may not have spiffed
we may not have spiffed
you may not have spiffed
they may not have spiffed	I may not have been spiffing
you may not have been spiffing
he may not have been spiffing
we may not have been spiffing
you may not have been spiffing
they may not have been spiffing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I spiff?
may you spiff?
may he spiff?
may we spiff?
may you spiff?
may they spiff? 	may I be spiffing?
may you be spiffing?
may he be spiffing?
may we be spiffing?
may you be spiffing?
may they be spiffing? 	may I have spiffed?
may you have spiffed?
may he have spiffed?
may we have spiffed?
may you have spiffed?
may they have spiffed? 	may I have been spiffing?
may you have been spiffing?
may he have been spiffing?
may we have been spiffing?
may you have been spiffing?
may they have been spiffing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not spiff?
may you not spiff?
may he not spiff?
may we not spiff?
may you not spiff?
may they not spiff? 	may I not be spiffing?
may you not be spiffing?
may he not be spiffing?
may we not be spiffing?
may you not be spiffing?
may they not be spiffing? 	may I not have spiffed?
may you not have spiffed?
may he not have spiffed?
may we not have spiffed?
may you not have spiffed?
may they not have spiffed? 	may I not have been spiffing?
may you not have been spiffing?
may he not have been spiffing?
may we not have been spiffing?
may you not have been spiffing?
may they not have been spiffing?