might stack
Regular verb: stack - stacked- stacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might stack
you might stack
she might stack
we might stack
you might stack
they might stack 	I might be stacking
you might be stacking
she might be stacking
we might be stacking
you might be stacking
they might be stacking	I might have stacked
you might have stacked
she 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
she 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 might not stack
you might not stack
she might not stack
we might not stack
you might not stack
they might not stack 	I might not be stacking
you might not be stacking
she might not be stacking
we might not be stacking
you might not be stacking
they might not be stacking	I might not have stacked
you might not have stacked
she might not have stacked
we might not have stacked
you might not have stacked
they might not have stacked	I might not have been stacking
you might not have been stacking
she might not have been stacking
we might not have been stacking
you might not have been stacking
they might not have been stacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I stack?
might you stack?
might she stack?
might we stack?
might you stack?
might they stack? 	might I be stacking?
might you be stacking?
might she be stacking?
might we be stacking?
might you be stacking?
might they be stacking? 	might I have stacked?
might you have stacked?
might she 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 she 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 	
might I not stack?
might you not stack?
might she not stack?
might we not stack?
might you not stack?
might they not stack? 	might I not be stacking?
might you not be stacking?
might she not be stacking?
might we not be stacking?
might you not be stacking?
might they not be stacking? 	might I not have stacked?
might you not have stacked?
might she not have stacked?
might we not have stacked?
might you not have stacked?
might they not have stacked? 	might I not have been stacking?
might you not have been stacking?
might she not have been stacking?
might we not have been stacking?
might you not have been stacking?
might they not have been stacking?