I could have you could have he could have we could have you could have they could have
Forma com V-ing
I could be having you could be having he could be having we could be having you could be having they could be having
Perfeito
I could have had you could have had he could have had we could have had you could have had they could have had
Perfeito com V-ing
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
I couldn't have you couldn't have he couldn't have we couldn't have you couldn't have they couldn't have
Forma com V-ing
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
Perfeito
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
Perfeito com V-ing
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
could I have? could you have? could he have? could we have? could you have? could they have?
Forma com V-ing
could I be having? could you be having? could he be having? could we be having? could you be having? could they be having?
Perfeito
could I have had? could you have had? could he have had? could we have had? could you have had? could they have had?
Perfeito com V-ing
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
couldn't I have? couldn't you have? couldn't he have? couldn't we have? couldn't you have? couldn't they have?
Forma com V-ing
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?
Perfeito
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?
Perfeito com V-ing
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?