I can gain you can gain he can gain we can gain you can gain they can gain
Forma con V-ing
I can be gaining you can be gaining he can be gaining we can be gaining you can be gaining they can be gaining
Perfecto
I can have gained you can have gained he can have gained we can have gained you can have gained they can have gained
Perfecto con V-ing
I can have been gaining you can have been gaining he can have been gaining we can have been gaining you can have been gaining they can have been gaining
Negación
Forma simple
I cannot gain you cannot gain he cannot gain we cannot gain you cannot gain they cannot gain
Forma con V-ing
I cannot be gaining you cannot be gaining he cannot be gaining we cannot be gaining you cannot be gaining they cannot be gaining
Perfecto
I cannot have gained you cannot have gained he cannot have gained we cannot have gained you cannot have gained they cannot have gained
Perfecto con V-ing
I cannot have been gaining you cannot have been gaining he cannot have been gaining we cannot have been gaining you cannot have been gaining they cannot have been gaining
Forma interrogativa
Forma simple
can I gain? can you gain? can he gain? can we gain? can you gain? can they gain?
Forma con V-ing
can I be gaining? can you be gaining? can he be gaining? can we be gaining? can you be gaining? can they be gaining?
Perfecto
can I have gained? can you have gained? can he have gained? can we have gained? can you have gained? can they have gained?
Perfecto con V-ing
can I have been gaining? can you have been gaining? can he have been gaining? can we have been gaining? can you have been gaining? can they have been gaining?
Forma interro-negativa
Forma simple
can I not gain? can you not gain? can he not gain? can we not gain? can you not gain? can they not gain?
Forma con V-ing
can I not be gaining? can you not be gaining? can he not be gaining? can we not be gaining? can you not be gaining? can they not be gaining?
Perfecto
can I not have gained? can you not have gained? can he not have gained? can we not have gained? can you not have gained? can they not have gained?
Perfecto con V-ing
can I not have been gaining? can you not have been gaining? can he not have been gaining? can we not have been gaining? can you not have been gaining? can they not have been gaining?