I can calk you can calk she can calk we can calk you can calk they can calk
Forma com V-ing
I can be calking you can be calking she can be calking we can be calking you can be calking they can be calking
Perfeito
I can have calked you can have calked she can have calked we can have calked you can have calked they can have calked
Perfeito com V-ing
I can have been calking you can have been calking she can have been calking we can have been calking you can have been calking they can have been calking
Negação
Forma simple
I can't calk you can't calk she can't calk we can't calk you can't calk they can't calk
Forma com V-ing
I can't be calking you can't be calking she can't be calking we can't be calking you can't be calking they can't be calking
Perfeito
I can't have calked you can't have calked she can't have calked we can't have calked you can't have calked they can't have calked
Perfeito com V-ing
I can't have been calking you can't have been calking she can't have been calking we can't have been calking you can't have been calking they can't have been calking
Forma interrogativa
Forma simple
can I calk? can you calk? can she calk? can we calk? can you calk? can they calk?
Forma com V-ing
can I be calking? can you be calking? can she be calking? can we be calking? can you be calking? can they be calking?
Perfeito
can I have calked? can you have calked? can she have calked? can we have calked? can you have calked? can they have calked?
Perfeito com V-ing
can I have been calking? can you have been calking? can she have been calking? can we have been calking? can you have been calking? can they have been calking?
Forma interro-Negação
Forma simple
can't I calk? can't you calk? can't she calk? can't we calk? can't you calk? can't they calk?
Forma com V-ing
can't I be calking? can't you be calking? can't she be calking? can't we be calking? can't you be calking? can't they be calking?
Perfeito
can't I have calked? can't you have calked? can't she have calked? can't we have calked? can't you have calked? can't they have calked?
Perfeito com V-ing
can't I have been calking? can't you have been calking? can't she have been calking? can't we have been calking? can't you have been calking? can't they have been calking?