I might stifle you might stifle he might stifle we might stifle you might stifle they might stifle
V-ing form
I might be stifling you might be stifling he might be stifling we might be stifling you might be stifling they might be stifling
Perfect
I might have stifled you might have stifled he might have stifled we might have stifled you might have stifled they might have stifled
V-ing perfect
I might have been stifling you might have been stifling he might have been stifling we might have been stifling you might have been stifling they might have been stifling
Negation
Simple form
I mightn't stifle you mightn't stifle he mightn't stifle we mightn't stifle you mightn't stifle they mightn't stifle
V-ing form
I mightn't be stifling you mightn't be stifling he mightn't be stifling we mightn't be stifling you mightn't be stifling they mightn't be stifling
Perfect
I mightn't have stifled you mightn't have stifled he mightn't have stifled we mightn't have stifled you mightn't have stifled they mightn't have stifled
V-ing perfect
I mightn't have been stifling you mightn't have been stifling he mightn't have been stifling we mightn't have been stifling you mightn't have been stifling they mightn't have been stifling
Interrogative form
Simple form
might I stifle? might you stifle? might he stifle? might we stifle? might you stifle? might they stifle?
V-ing form
might I be stifling? might you be stifling? might he be stifling? might we be stifling? might you be stifling? might they be stifling?
Perfect
might I have stifled? might you have stifled? might he have stifled? might we have stifled? might you have stifled? might they have stifled?
V-ing perfect
might I have been stifling? might you have been stifling? might he have been stifling? might we have been stifling? might you have been stifling? might they have been stifling?
Interro-negative form
Simple form
mightn't I stifle? mightn't you stifle? mightn't he stifle? mightn't we stifle? mightn't you stifle? mightn't they stifle?
V-ing form
mightn't I be stifling? mightn't you be stifling? mightn't he be stifling? mightn't we be stifling? mightn't you be stifling? mightn't they be stifling?
Perfect
mightn't I have stifled? mightn't you have stifled? mightn't he have stifled? mightn't we have stifled? mightn't you have stifled? mightn't they have stifled?
V-ing perfect
mightn't I have been stifling? mightn't you have been stifling? mightn't he have been stifling? mightn't we have been stifling? mightn't you have been stifling? mightn't they have been stifling?