I'll be stiffening you'll be stiffening he'll be stiffening we'll be stiffening you'll be stiffening they'll be stiffening
Perfect
I'll have stiffened you'll have stiffened he'll have stiffened we'll have stiffened you'll have stiffened they'll have stiffened
V-ing perfect
I'll have been stiffening you'll have been stiffening he'll have been stiffening we'll have been stiffening you'll have been stiffening they'll have been stiffening
Negation
Simple form
I shan't stiffen you shan't stiffen he shan't stiffen we shan't stiffen you shan't stiffen they shan't stiffen
V-ing form
I shan't be stiffening you shan't be stiffening he shan't be stiffening we shan't be stiffening you shan't be stiffening they shan't be stiffening
Perfect
I shan't have stiffened you shan't have stiffened he shan't have stiffened we shan't have stiffened you shan't have stiffened they shan't have stiffened
V-ing perfect
I shan't have been stiffening you shan't have been stiffening he shan't have been stiffening we shan't have been stiffening you shan't have been stiffening they shan't have been stiffening
Interrogative form
Simple form
shall I stiffen? shall you stiffen? shall he stiffen? shall we stiffen? shall you stiffen? shall they stiffen?
V-ing form
shall I be stiffening? shall you be stiffening? shall he be stiffening? shall we be stiffening? shall you be stiffening? shall they be stiffening?
Perfect
shall I have stiffened? shall you have stiffened? shall he have stiffened? shall we have stiffened? shall you have stiffened? shall they have stiffened?
V-ing perfect
shall I have been stiffening? shall you have been stiffening? shall he have been stiffening? shall we have been stiffening? shall you have been stiffening? shall they have been stiffening?
Interro-negative form
Simple form
shan't I stiffen? shan't you stiffen? shan't he stiffen? shan't we stiffen? shan't you stiffen? shan't they stiffen?
V-ing form
shan't I be stiffening? shan't you be stiffening? shan't he be stiffening? shan't we be stiffening? shan't you be stiffening? shan't they be stiffening?
Perfect
shan't I have stiffened? shan't you have stiffened? shan't he have stiffened? shan't we have stiffened? shan't you have stiffened? shan't they have stiffened?
V-ing perfect
shan't I have been stiffening? shan't you have been stiffening? shan't he have been stiffening? shan't we have been stiffening? shan't you have been stiffening? shan't they have been stiffening?