can calk
Verbo regular: calk - calked- calked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can calk
you can calk
he can calk
we can calk
you can calk
they can calk 	I can be calking
you can be calking
he can be calking
we can be calking
you can be calking
they can be calking	I can have calked
you can have calked
he can have calked
we can have calked
you can have calked
they can have calked	I can have been calking
you can have been calking
he can have been calking
we can have been calking
you can have been calking
they can have been calking	

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

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