I can barn you can barn she can barn we can barn you can barn they can barn
Forma com V-ing
I can be barning you can be barning she can be barning we can be barning you can be barning they can be barning
Perfeito
I can have barned you can have barned she can have barned we can have barned you can have barned they can have barned
Perfeito com V-ing
I can have been barning you can have been barning she can have been barning we can have been barning you can have been barning they can have been barning
Negação
Forma simple
I can't barn you can't barn she can't barn we can't barn you can't barn they can't barn
Forma com V-ing
I can't be barning you can't be barning she can't be barning we can't be barning you can't be barning they can't be barning
Perfeito
I can't have barned you can't have barned she can't have barned we can't have barned you can't have barned they can't have barned
Perfeito com V-ing
I can't have been barning you can't have been barning she can't have been barning we can't have been barning you can't have been barning they can't have been barning
Forma interrogativa
Forma simple
can I barn? can you barn? can she barn? can we barn? can you barn? can they barn?
Forma com V-ing
can I be barning? can you be barning? can she be barning? can we be barning? can you be barning? can they be barning?
Perfeito
can I have barned? can you have barned? can she have barned? can we have barned? can you have barned? can they have barned?
Perfeito com V-ing
can I have been barning? can you have been barning? can she have been barning? can we have been barning? can you have been barning? can they have been barning?
Forma interro-Negação
Forma simple
can't I barn? can't you barn? can't she barn? can't we barn? can't you barn? can't they barn?
Forma com V-ing
can't I be barning? can't you be barning? can't she be barning? can't we be barning? can't you be barning? can't they be barning?
Perfeito
can't I have barned? can't you have barned? can't she have barned? can't we have barned? can't you have barned? can't they have barned?
Perfeito com V-ing
can't I have been barning? can't you have been barning? can't she have been barning? can't we have been barning? can't you have been barning? can't they have been barning?