might stack
Regular verb: stack - stacked- stacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might stack
you might stack
he might stack
we might stack
you might stack
they might stack 	I might be stacking
you might be stacking
he might be stacking
we might be stacking
you might be stacking
they might be stacking	I might have stacked
you might have stacked
he might have stacked
we might have stacked
you might have stacked
they might have stacked	I might have been stacking
you might have been stacking
he might have been stacking
we might have been stacking
you might have been stacking
they might have been stacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mightn't stack
you mightn't stack
he mightn't stack
we mightn't stack
you mightn't stack
they mightn't stack 	I mightn't be stacking
you mightn't be stacking
he mightn't be stacking
we mightn't be stacking
you mightn't be stacking
they mightn't be stacking	I mightn't have stacked
you mightn't have stacked
he mightn't have stacked
we mightn't have stacked
you mightn't have stacked
they mightn't have stacked	I mightn't have been stacking
you mightn't have been stacking
he mightn't have been stacking
we mightn't have been stacking
you mightn't have been stacking
they mightn't have been stacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I stack?
might you stack?
might he stack?
might we stack?
might you stack?
might they stack? 	might I be stacking?
might you be stacking?
might he be stacking?
might we be stacking?
might you be stacking?
might they be stacking? 	might I have stacked?
might you have stacked?
might he have stacked?
might we have stacked?
might you have stacked?
might they have stacked? 	might I have been stacking?
might you have been stacking?
might he have been stacking?
might we have been stacking?
might you have been stacking?
might they have been stacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mightn't I stack?
mightn't you stack?
mightn't he stack?
mightn't we stack?
mightn't you stack?
mightn't they stack? 	mightn't I be stacking?
mightn't you be stacking?
mightn't he be stacking?
mightn't we be stacking?
mightn't you be stacking?
mightn't they be stacking? 	mightn't I have stacked?
mightn't you have stacked?
mightn't he have stacked?
mightn't we have stacked?
mightn't you have stacked?
mightn't they have stacked? 	mightn't I have been stacking?
mightn't you have been stacking?
mightn't he have been stacking?
mightn't we have been stacking?
mightn't you have been stacking?
mightn't they have been stacking?