could rook
Verbo regular: rook - rooked- rooked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could rook
you could rook
he could rook
we could rook
you could rook
they could rook 	I could be rooking
you could be rooking
he could be rooking
we could be rooking
you could be rooking
they could be rooking	I could have rooked
you could have rooked
he could have rooked
we could have rooked
you could have rooked
they could have rooked	I could have been rooking
you could have been rooking
he could have been rooking
we could have been rooking
you could have been rooking
they could have been rooking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't rook
you couldn't rook
he couldn't rook
we couldn't rook
you couldn't rook
they couldn't rook 	I couldn't be rooking
you couldn't be rooking
he couldn't be rooking
we couldn't be rooking
you couldn't be rooking
they couldn't be rooking	I couldn't have rooked
you couldn't have rooked
he couldn't have rooked
we couldn't have rooked
you couldn't have rooked
they couldn't have rooked	I couldn't have been rooking
you couldn't have been rooking
he couldn't have been rooking
we couldn't have been rooking
you couldn't have been rooking
they couldn't have been rooking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I rook?
could you rook?
could he rook?
could we rook?
could you rook?
could they rook? 	could I be rooking?
could you be rooking?
could he be rooking?
could we be rooking?
could you be rooking?
could they be rooking? 	could I have rooked?
could you have rooked?
could he have rooked?
could we have rooked?
could you have rooked?
could they have rooked? 	could I have been rooking?
could you have been rooking?
could he have been rooking?
could we have been rooking?
could you have been rooking?
could they have been rooking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I rook?
couldn't you rook?
couldn't he rook?
couldn't we rook?
couldn't you rook?
couldn't they rook? 	couldn't I be rooking?
couldn't you be rooking?
couldn't he be rooking?
couldn't we be rooking?
couldn't you be rooking?
couldn't they be rooking? 	couldn't I have rooked?
couldn't you have rooked?
couldn't he have rooked?
couldn't we have rooked?
couldn't you have rooked?
couldn't they have rooked? 	couldn't I have been rooking?
couldn't you have been rooking?
couldn't he have been rooking?
couldn't we have been rooking?
couldn't you have been rooking?
couldn't they have been rooking?