I can confirm you can confirm she can confirm we can confirm you can confirm they can confirm
Forma con V-ing
I can be confirming you can be confirming she can be confirming we can be confirming you can be confirming they can be confirming
Perfecto
I can have confirmed you can have confirmed she can have confirmed we can have confirmed you can have confirmed they can have confirmed
Perfecto con V-ing
I can have been confirming you can have been confirming she can have been confirming we can have been confirming you can have been confirming they can have been confirming
Negación
Forma simple
I cannot confirm you cannot confirm she cannot confirm we cannot confirm you cannot confirm they cannot confirm
Forma con V-ing
I cannot be confirming you cannot be confirming she cannot be confirming we cannot be confirming you cannot be confirming they cannot be confirming
Perfecto
I cannot have confirmed you cannot have confirmed she cannot have confirmed we cannot have confirmed you cannot have confirmed they cannot have confirmed
Perfecto con V-ing
I cannot have been confirming you cannot have been confirming she cannot have been confirming we cannot have been confirming you cannot have been confirming they cannot have been confirming
Forma interrogativa
Forma simple
can I confirm? can you confirm? can she confirm? can we confirm? can you confirm? can they confirm?
Forma con V-ing
can I be confirming? can you be confirming? can she be confirming? can we be confirming? can you be confirming? can they be confirming?
Perfecto
can I have confirmed? can you have confirmed? can she have confirmed? can we have confirmed? can you have confirmed? can they have confirmed?
Perfecto con V-ing
can I have been confirming? can you have been confirming? can she have been confirming? can we have been confirming? can you have been confirming? can they have been confirming?
Forma interro-negativa
Forma simple
can I not confirm? can you not confirm? can she not confirm? can we not confirm? can you not confirm? can they not confirm?
Forma con V-ing
can I not be confirming? can you not be confirming? can she not be confirming? can we not be confirming? can you not be confirming? can they not be confirming?
Perfecto
can I not have confirmed? can you not have confirmed? can she not have confirmed? can we not have confirmed? can you not have confirmed? can they not have confirmed?
Perfecto con V-ing
can I not have been confirming? can you not have been confirming? can she not have been confirming? can we not have been confirming? can you not have been confirming? can they not have been confirming?