might stiff
Regular verb: stiff - stiffed- stiffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might stiff
you might stiff
he might stiff
we might stiff
you might stiff
they might stiff 	I might be stiffing
you might be stiffing
he might be stiffing
we might be stiffing
you might be stiffing
they might be stiffing	I might have stiffed
you might have stiffed
he might have stiffed
we might have stiffed
you might have stiffed
they might have stiffed	I might have been stiffing
you might have been stiffing
he might have been stiffing
we might have been stiffing
you might have been stiffing
they might have been stiffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might not stiff
you might not stiff
he might not stiff
we might not stiff
you might not stiff
they might not stiff 	I might not be stiffing
you might not be stiffing
he might not be stiffing
we might not be stiffing
you might not be stiffing
they might not be stiffing	I might not have stiffed
you might not have stiffed
he might not have stiffed
we might not have stiffed
you might not have stiffed
they might not have stiffed	I might not have been stiffing
you might not have been stiffing
he might not have been stiffing
we might not have been stiffing
you might not have been stiffing
they might not have been stiffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I stiff?
might you stiff?
might he stiff?
might we stiff?
might you stiff?
might they stiff? 	might I be stiffing?
might you be stiffing?
might he be stiffing?
might we be stiffing?
might you be stiffing?
might they be stiffing? 	might I have stiffed?
might you have stiffed?
might he have stiffed?
might we have stiffed?
might you have stiffed?
might they have stiffed? 	might I have been stiffing?
might you have been stiffing?
might he have been stiffing?
might we have been stiffing?
might you have been stiffing?
might they have been stiffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I not stiff?
might you not stiff?
might he not stiff?
might we not stiff?
might you not stiff?
might they not stiff? 	might I not be stiffing?
might you not be stiffing?
might he not be stiffing?
might we not be stiffing?
might you not be stiffing?
might they not be stiffing? 	might I not have stiffed?
might you not have stiffed?
might he not have stiffed?
might we not have stiffed?
might you not have stiffed?
might they not have stiffed? 	might I not have been stiffing?
might you not have been stiffing?
might he not have been stiffing?
might we not have been stiffing?
might you not have been stiffing?
might they not have been stiffing?