I can joke you can joke she can joke we can joke you can joke they can joke
Forma con V-ing
I can be joking you can be joking she can be joking we can be joking you can be joking they can be joking
Perfecto
I can have joked you can have joked she can have joked we can have joked you can have joked they can have joked
Perfecto con V-ing
I can have been joking you can have been joking she can have been joking we can have been joking you can have been joking they can have been joking
Negación
Forma simple
I cannot joke you cannot joke she cannot joke we cannot joke you cannot joke they cannot joke
Forma con V-ing
I cannot be joking you cannot be joking she cannot be joking we cannot be joking you cannot be joking they cannot be joking
Perfecto
I cannot have joked you cannot have joked she cannot have joked we cannot have joked you cannot have joked they cannot have joked
Perfecto con V-ing
I cannot have been joking you cannot have been joking she cannot have been joking we cannot have been joking you cannot have been joking they cannot have been joking
Forma interrogativa
Forma simple
can I joke? can you joke? can she joke? can we joke? can you joke? can they joke?
Forma con V-ing
can I be joking? can you be joking? can she be joking? can we be joking? can you be joking? can they be joking?
Perfecto
can I have joked? can you have joked? can she have joked? can we have joked? can you have joked? can they have joked?
Perfecto con V-ing
can I have been joking? can you have been joking? can she have been joking? can we have been joking? can you have been joking? can they have been joking?
Forma interro-negativa
Forma simple
can I not joke? can you not joke? can she not joke? can we not joke? can you not joke? can they not joke?
Forma con V-ing
can I not be joking? can you not be joking? can she not be joking? can we not be joking? can you not be joking? can they not be joking?
Perfecto
can I not have joked? can you not have joked? can she not have joked? can we not have joked? can you not have joked? can they not have joked?
Perfecto con V-ing
can I not have been joking? can you not have been joking? can she not have been joking? can we not have been joking? can you not have been joking? can they not have been joking?