I can stifle you can stifle she can stifle we can stifle you can stifle they can stifle
Forma con V-ing
I can be stifling you can be stifling she can be stifling we can be stifling you can be stifling they can be stifling
Perfecto
I can have stifled you can have stifled she can have stifled we can have stifled you can have stifled they can have stifled
Perfecto con V-ing
I can have been stifling you can have been stifling she can have been stifling we can have been stifling you can have been stifling they can have been stifling
Negación
Forma simple
I can't stifle you can't stifle she can't stifle we can't stifle you can't stifle they can't stifle
Forma con V-ing
I can't be stifling you can't be stifling she can't be stifling we can't be stifling you can't be stifling they can't be stifling
Perfecto
I can't have stifled you can't have stifled she can't have stifled we can't have stifled you can't have stifled they can't have stifled
Perfecto con V-ing
I can't have been stifling you can't have been stifling she can't have been stifling we can't have been stifling you can't have been stifling they can't have been stifling
Forma interrogativa
Forma simple
can I stifle? can you stifle? can she stifle? can we stifle? can you stifle? can they stifle?
Forma con V-ing
can I be stifling? can you be stifling? can she be stifling? can we be stifling? can you be stifling? can they be stifling?
Perfecto
can I have stifled? can you have stifled? can she have stifled? can we have stifled? can you have stifled? can they have stifled?
Perfecto con V-ing
can I have been stifling? can you have been stifling? can she have been stifling? can we have been stifling? can you have been stifling? can they have been stifling?
Forma interro-negativa
Forma simple
can't I stifle? can't you stifle? can't she stifle? can't we stifle? can't you stifle? can't they stifle?
Forma con V-ing
can't I be stifling? can't you be stifling? can't she be stifling? can't we be stifling? can't you be stifling? can't they be stifling?
Perfecto
can't I have stifled? can't you have stifled? can't she have stifled? can't we have stifled? can't you have stifled? can't they have stifled?
Perfecto con V-ing
can't I have been stifling? can't you have been stifling? can't she have been stifling? can't we have been stifling? can't you have been stifling? can't they have been stifling?