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