I can visit you can visit he can visit we can visit you can visit they can visit
Forma con V-ing
I can be visiting you can be visiting he can be visiting we can be visiting you can be visiting they can be visiting
Perfecto
I can have visited you can have visited he can have visited we can have visited you can have visited they can have visited
Perfecto con V-ing
I can have been visiting you can have been visiting he can have been visiting we can have been visiting you can have been visiting they can have been visiting
Negación
Forma simple
I can't visit you can't visit he can't visit we can't visit you can't visit they can't visit
Forma con V-ing
I can't be visiting you can't be visiting he can't be visiting we can't be visiting you can't be visiting they can't be visiting
Perfecto
I can't have visited you can't have visited he can't have visited we can't have visited you can't have visited they can't have visited
Perfecto con V-ing
I can't have been visiting you can't have been visiting he can't have been visiting we can't have been visiting you can't have been visiting they can't have been visiting
Forma interrogativa
Forma simple
can I visit? can you visit? can he visit? can we visit? can you visit? can they visit?
Forma con V-ing
can I be visiting? can you be visiting? can he be visiting? can we be visiting? can you be visiting? can they be visiting?
Perfecto
can I have visited? can you have visited? can he have visited? can we have visited? can you have visited? can they have visited?
Perfecto con V-ing
can I have been visiting? can you have been visiting? can he have been visiting? can we have been visiting? can you have been visiting? can they have been visiting?
Forma interro-negativa
Forma simple
can't I visit? can't you visit? can't he visit? can't we visit? can't you visit? can't they visit?
Forma con V-ing
can't I be visiting? can't you be visiting? can't he be visiting? can't we be visiting? can't you be visiting? can't they be visiting?
Perfecto
can't I have visited? can't you have visited? can't he have visited? can't we have visited? can't you have visited? can't they have visited?
Perfecto con V-ing
can't I have been visiting? can't you have been visiting? can't he have been visiting? can't we have been visiting? can't you have been visiting? can't they have been visiting?