I shall stack you shall stack he shall stack we shall stack you shall stack they shall stack
V-ing form
I shall be stacking you shall be stacking he shall be stacking we shall be stacking you shall be stacking they shall be stacking
Perfect
I shall have stacked you shall have stacked he shall have stacked we shall have stacked you shall have stacked they shall have stacked
V-ing perfect
I shall have been stacking you shall have been stacking he shall have been stacking we shall have been stacking you shall have been stacking they shall have been stacking
Negation
Simple form
I shall not stack you shall not stack he shall not stack we shall not stack you shall not stack they shall not stack
V-ing form
I shall not be stacking you shall not be stacking he shall not be stacking we shall not be stacking you shall not be stacking they shall not be stacking
Perfect
I shall not have stacked you shall not have stacked he shall not have stacked we shall not have stacked you shall not have stacked they shall not have stacked
V-ing perfect
I shall not have been stacking you shall not have been stacking he shall not have been stacking we shall not have been stacking you shall not have been stacking they shall not have been stacking
Interrogative form
Simple form
shall I stack? shall you stack? shall he stack? shall we stack? shall you stack? shall they stack?
V-ing form
shall I be stacking? shall you be stacking? shall he be stacking? shall we be stacking? shall you be stacking? shall they be stacking?
Perfect
shall I have stacked? shall you have stacked? shall he have stacked? shall we have stacked? shall you have stacked? shall they have stacked?
V-ing perfect
shall I have been stacking? shall you have been stacking? shall he have been stacking? shall we have been stacking? shall you have been stacking? shall they have been stacking?
Interro-negative form
Simple form
shall I not stack? shall you not stack? shall he not stack? shall we not stack? shall you not stack? shall they not stack?
V-ing form
shall I not be stacking? shall you not be stacking? shall he not be stacking? shall we not be stacking? shall you not be stacking? shall they not be stacking?
Perfect
shall I not have stacked? shall you not have stacked? shall he not have stacked? shall we not have stacked? shall you not have stacked? shall they not have stacked?
V-ing perfect
shall I not have been stacking? shall you not have been stacking? shall he not have been stacking? shall we not have been stacking? shall you not have been stacking? shall they not have been stacking?