could have
Verbo irregular: have - had- had

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could have
you could have
he could have
we could have
you could have
they could have 	I could be having
you could be having
he could be having
we could be having
you could be having
they could be having	I could have had
you could have had
he could have had
we could have had
you could have had
they could have had	I could have been having
you could have been having
he could have been having
we could have been having
you could have been having
they could have been having	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't have
you couldn't have
he couldn't have
we couldn't have
you couldn't have
they couldn't have 	I couldn't be having
you couldn't be having
he couldn't be having
we couldn't be having
you couldn't be having
they couldn't be having	I couldn't have had
you couldn't have had
he couldn't have had
we couldn't have had
you couldn't have had
they couldn't have had	I couldn't have been having
you couldn't have been having
he couldn't have been having
we couldn't have been having
you couldn't have been having
they couldn't have been having	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I have?
could you have?
could he have?
could we have?
could you have?
could they have? 	could I be having?
could you be having?
could he be having?
could we be having?
could you be having?
could they be having? 	could I have had?
could you have had?
could he have had?
could we have had?
could you have had?
could they have had? 	could I have been having?
could you have been having?
could he have been having?
could we have been having?
could you have been having?
could they have been having? 	

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