I'll be stifling you'll be stifling she'll be stifling we'll be stifling you'll be stifling they'll be stifling
Perfect
I'll have stifled you'll have stifled she'll have stifled we'll have stifled you'll have stifled they'll have stifled
V-ing perfect
I'll have been stifling you'll have been stifling she'll have been stifling we'll have been stifling you'll have been stifling they'll have been stifling
Negation
Simple form
I shan't stifle you shan't stifle she shan't stifle we shan't stifle you shan't stifle they shan't stifle
V-ing form
I shan't be stifling you shan't be stifling she shan't be stifling we shan't be stifling you shan't be stifling they shan't be stifling
Perfect
I shan't have stifled you shan't have stifled she shan't have stifled we shan't have stifled you shan't have stifled they shan't have stifled
V-ing perfect
I shan't have been stifling you shan't have been stifling she shan't have been stifling we shan't have been stifling you shan't have been stifling they shan't have been stifling
Interrogative form
Simple form
shall I stifle? shall you stifle? shall she stifle? shall we stifle? shall you stifle? shall they stifle?
V-ing form
shall I be stifling? shall you be stifling? shall she be stifling? shall we be stifling? shall you be stifling? shall they be stifling?
Perfect
shall I have stifled? shall you have stifled? shall she have stifled? shall we have stifled? shall you have stifled? shall they have stifled?
V-ing perfect
shall I have been stifling? shall you have been stifling? shall she have been stifling? shall we have been stifling? shall you have been stifling? shall they have been stifling?
Interro-negative form
Simple form
shan't I stifle? shan't you stifle? shan't she stifle? shan't we stifle? shan't you stifle? shan't they stifle?
V-ing form
shan't I be stifling? shan't you be stifling? shan't she be stifling? shan't we be stifling? shan't you be stifling? shan't they be stifling?
Perfect
shan't I have stifled? shan't you have stifled? shan't she have stifled? shan't we have stifled? shan't you have stifled? shan't they have stifled?
V-ing perfect
shan't I have been stifling? shan't you have been stifling? shan't she have been stifling? shan't we have been stifling? shan't you have been stifling? shan't they have been stifling?