can coo
Verbo regular: coo - cooed- cooed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can coo
you can coo
he can coo
we can coo
you can coo
they can coo 	I can be cooing
you can be cooing
he can be cooing
we can be cooing
you can be cooing
they can be cooing	I can have cooed
you can have cooed
he can have cooed
we can have cooed
you can have cooed
they can have cooed	I can have been cooing
you can have been cooing
he can have been cooing
we can have been cooing
you can have been cooing
they can have been cooing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't coo
you can't coo
he can't coo
we can't coo
you can't coo
they can't coo 	I can't be cooing
you can't be cooing
he can't be cooing
we can't be cooing
you can't be cooing
they can't be cooing	I can't have cooed
you can't have cooed
he can't have cooed
we can't have cooed
you can't have cooed
they can't have cooed	I can't have been cooing
you can't have been cooing
he can't have been cooing
we can't have been cooing
you can't have been cooing
they can't have been cooing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I coo?
can you coo?
can he coo?
can we coo?
can you coo?
can they coo? 	can I be cooing?
can you be cooing?
can he be cooing?
can we be cooing?
can you be cooing?
can they be cooing? 	can I have cooed?
can you have cooed?
can he have cooed?
can we have cooed?
can you have cooed?
can they have cooed? 	can I have been cooing?
can you have been cooing?
can he have been cooing?
can we have been cooing?
can you have been cooing?
can they have been cooing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I coo?
can't you coo?
can't he coo?
can't we coo?
can't you coo?
can't they coo? 	can't I be cooing?
can't you be cooing?
can't he be cooing?
can't we be cooing?
can't you be cooing?
can't they be cooing? 	can't I have cooed?
can't you have cooed?
can't he have cooed?
can't we have cooed?
can't you have cooed?
can't they have cooed? 	can't I have been cooing?
can't you have been cooing?
can't he have been cooing?
can't we have been cooing?
can't you have been cooing?
can't they have been cooing?