I could dupe you could dupe she could dupe we could dupe you could dupe they could dupe
Forma com V-ing
I could be duping you could be duping she could be duping we could be duping you could be duping they could be duping
Perfeito
I could have duped you could have duped she could have duped we could have duped you could have duped they could have duped
Perfeito com V-ing
I could have been duping you could have been duping she could have been duping we could have been duping you could have been duping they could have been duping
Negação
Forma simple
I couldn't dupe you couldn't dupe she couldn't dupe we couldn't dupe you couldn't dupe they couldn't dupe
Forma com V-ing
I couldn't be duping you couldn't be duping she couldn't be duping we couldn't be duping you couldn't be duping they couldn't be duping
Perfeito
I couldn't have duped you couldn't have duped she couldn't have duped we couldn't have duped you couldn't have duped they couldn't have duped
Perfeito com V-ing
I couldn't have been duping you couldn't have been duping she couldn't have been duping we couldn't have been duping you couldn't have been duping they couldn't have been duping
Forma interrogativa
Forma simple
could I dupe? could you dupe? could she dupe? could we dupe? could you dupe? could they dupe?
Forma com V-ing
could I be duping? could you be duping? could she be duping? could we be duping? could you be duping? could they be duping?
Perfeito
could I have duped? could you have duped? could she have duped? could we have duped? could you have duped? could they have duped?
Perfeito com V-ing
could I have been duping? could you have been duping? could she have been duping? could we have been duping? could you have been duping? could they have been duping?
Forma interro-Negação
Forma simple
couldn't I dupe? couldn't you dupe? couldn't she dupe? couldn't we dupe? couldn't you dupe? couldn't they dupe?
Forma com V-ing
couldn't I be duping? couldn't you be duping? couldn't she be duping? couldn't we be duping? couldn't you be duping? couldn't they be duping?
Perfeito
couldn't I have duped? couldn't you have duped? couldn't she have duped? couldn't we have duped? couldn't you have duped? couldn't they have duped?
Perfeito com V-ing
couldn't I have been duping? couldn't you have been duping? couldn't she have been duping? couldn't we have been duping? couldn't you have been duping? couldn't they have been duping?