might spiff
Regular verb: spiff - spiffed- spiffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might spiff
you might spiff
he might spiff
we might spiff
you might spiff
they might spiff 	I might be spiffing
you might be spiffing
he might be spiffing
we might be spiffing
you might be spiffing
they might be spiffing	I might have spiffed
you might have spiffed
he might have spiffed
we might have spiffed
you might have spiffed
they might have spiffed	I might have been spiffing
you might have been spiffing
he might have been spiffing
we might have been spiffing
you might have been spiffing
they might have been spiffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mightn't spiff
you mightn't spiff
he mightn't spiff
we mightn't spiff
you mightn't spiff
they mightn't spiff 	I mightn't be spiffing
you mightn't be spiffing
he mightn't be spiffing
we mightn't be spiffing
you mightn't be spiffing
they mightn't be spiffing	I mightn't have spiffed
you mightn't have spiffed
he mightn't have spiffed
we mightn't have spiffed
you mightn't have spiffed
they mightn't have spiffed	I mightn't have been spiffing
you mightn't have been spiffing
he mightn't have been spiffing
we mightn't have been spiffing
you mightn't have been spiffing
they mightn't have been spiffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I spiff?
might you spiff?
might he spiff?
might we spiff?
might you spiff?
might they spiff? 	might I be spiffing?
might you be spiffing?
might he be spiffing?
might we be spiffing?
might you be spiffing?
might they be spiffing? 	might I have spiffed?
might you have spiffed?
might he have spiffed?
might we have spiffed?
might you have spiffed?
might they have spiffed? 	might I have been spiffing?
might you have been spiffing?
might he have been spiffing?
might we have been spiffing?
might you have been spiffing?
might they have been spiffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mightn't I spiff?
mightn't you spiff?
mightn't he spiff?
mightn't we spiff?
mightn't you spiff?
mightn't they spiff? 	mightn't I be spiffing?
mightn't you be spiffing?
mightn't he be spiffing?
mightn't we be spiffing?
mightn't you be spiffing?
mightn't they be spiffing? 	mightn't I have spiffed?
mightn't you have spiffed?
mightn't he have spiffed?
mightn't we have spiffed?
mightn't you have spiffed?
mightn't they have spiffed? 	mightn't I have been spiffing?
mightn't you have been spiffing?
mightn't he have been spiffing?
mightn't we have been spiffing?
mightn't you have been spiffing?
mightn't they have been spiffing?