I could delay you could delay she could delay we could delay you could delay they could delay
Forma com V-ing
I could be delaying you could be delaying she could be delaying we could be delaying you could be delaying they could be delaying
Perfeito
I could have delayed you could have delayed she could have delayed we could have delayed you could have delayed they could have delayed
Perfeito com V-ing
I could have been delaying you could have been delaying she could have been delaying we could have been delaying you could have been delaying they could have been delaying
Negação
Forma simple
I couldn't delay you couldn't delay she couldn't delay we couldn't delay you couldn't delay they couldn't delay
Forma com V-ing
I couldn't be delaying you couldn't be delaying she couldn't be delaying we couldn't be delaying you couldn't be delaying they couldn't be delaying
Perfeito
I couldn't have delayed you couldn't have delayed she couldn't have delayed we couldn't have delayed you couldn't have delayed they couldn't have delayed
Perfeito com V-ing
I couldn't have been delaying you couldn't have been delaying she couldn't have been delaying we couldn't have been delaying you couldn't have been delaying they couldn't have been delaying
Forma interrogativa
Forma simple
could I delay? could you delay? could she delay? could we delay? could you delay? could they delay?
Forma com V-ing
could I be delaying? could you be delaying? could she be delaying? could we be delaying? could you be delaying? could they be delaying?
Perfeito
could I have delayed? could you have delayed? could she have delayed? could we have delayed? could you have delayed? could they have delayed?
Perfeito com V-ing
could I have been delaying? could you have been delaying? could she have been delaying? could we have been delaying? could you have been delaying? could they have been delaying?
Forma interro-Negação
Forma simple
couldn't I delay? couldn't you delay? couldn't she delay? couldn't we delay? couldn't you delay? couldn't they delay?
Forma com V-ing
couldn't I be delaying? couldn't you be delaying? couldn't she be delaying? couldn't we be delaying? couldn't you be delaying? couldn't they be delaying?
Perfeito
couldn't I have delayed? couldn't you have delayed? couldn't she have delayed? couldn't we have delayed? couldn't you have delayed? couldn't they have delayed?
Perfeito com V-ing
couldn't I have been delaying? couldn't you have been delaying? couldn't she have been delaying? couldn't we have been delaying? couldn't you have been delaying? couldn't they have been delaying?