I can tire you can tire he can tire we can tire you can tire they can tire
Forma con V-ing
I can be tiring you can be tiring he can be tiring we can be tiring you can be tiring they can be tiring
Perfecto
I can have tired you can have tired he can have tired we can have tired you can have tired they can have tired
Perfecto con V-ing
I can have been tiring you can have been tiring he can have been tiring we can have been tiring you can have been tiring they can have been tiring
Negación
Forma simple
I cannot tire you cannot tire he cannot tire we cannot tire you cannot tire they cannot tire
Forma con V-ing
I cannot be tiring you cannot be tiring he cannot be tiring we cannot be tiring you cannot be tiring they cannot be tiring
Perfecto
I cannot have tired you cannot have tired he cannot have tired we cannot have tired you cannot have tired they cannot have tired
Perfecto con V-ing
I cannot have been tiring you cannot have been tiring he cannot have been tiring we cannot have been tiring you cannot have been tiring they cannot have been tiring
Forma interrogativa
Forma simple
can I tire? can you tire? can he tire? can we tire? can you tire? can they tire?
Forma con V-ing
can I be tiring? can you be tiring? can he be tiring? can we be tiring? can you be tiring? can they be tiring?
Perfecto
can I have tired? can you have tired? can he have tired? can we have tired? can you have tired? can they have tired?
Perfecto con V-ing
can I have been tiring? can you have been tiring? can he have been tiring? can we have been tiring? can you have been tiring? can they have been tiring?
Forma interro-negativa
Forma simple
can I not tire? can you not tire? can he not tire? can we not tire? can you not tire? can they not tire?
Forma con V-ing
can I not be tiring? can you not be tiring? can he not be tiring? can we not be tiring? can you not be tiring? can they not be tiring?
Perfecto
can I not have tired? can you not have tired? can he not have tired? can we not have tired? can you not have tired? can they not have tired?
Perfecto con V-ing
can I not have been tiring? can you not have been tiring? can he not have been tiring? can we not have been tiring? can you not have been tiring? can they not have been tiring?