I can shift you can shift he can shift we can shift you can shift they can shift
Forma con V-ing
I can be shifting you can be shifting he can be shifting we can be shifting you can be shifting they can be shifting
Perfecto
I can have shifted you can have shifted he can have shifted we can have shifted you can have shifted they can have shifted
Perfecto con V-ing
I can have been shifting you can have been shifting he can have been shifting we can have been shifting you can have been shifting they can have been shifting
Negación
Forma simple
I can't shift you can't shift he can't shift we can't shift you can't shift they can't shift
Forma con V-ing
I can't be shifting you can't be shifting he can't be shifting we can't be shifting you can't be shifting they can't be shifting
Perfecto
I can't have shifted you can't have shifted he can't have shifted we can't have shifted you can't have shifted they can't have shifted
Perfecto con V-ing
I can't have been shifting you can't have been shifting he can't have been shifting we can't have been shifting you can't have been shifting they can't have been shifting
Forma interrogativa
Forma simple
can I shift? can you shift? can he shift? can we shift? can you shift? can they shift?
Forma con V-ing
can I be shifting? can you be shifting? can he be shifting? can we be shifting? can you be shifting? can they be shifting?
Perfecto
can I have shifted? can you have shifted? can he have shifted? can we have shifted? can you have shifted? can they have shifted?
Perfecto con V-ing
can I have been shifting? can you have been shifting? can he have been shifting? can we have been shifting? can you have been shifting? can they have been shifting?
Forma interro-negativa
Forma simple
can't I shift? can't you shift? can't he shift? can't we shift? can't you shift? can't they shift?
Forma con V-ing
can't I be shifting? can't you be shifting? can't he be shifting? can't we be shifting? can't you be shifting? can't they be shifting?
Perfecto
can't I have shifted? can't you have shifted? can't he have shifted? can't we have shifted? can't you have shifted? can't they have shifted?
Perfecto con V-ing
can't I have been shifting? can't you have been shifting? can't he have been shifting? can't we have been shifting? can't you have been shifting? can't they have been shifting?