I could underlay you could underlay she could underlay we could underlay you could underlay they could underlay
Forma com V-ing
I could be underlaying you could be underlaying she could be underlaying we could be underlaying you could be underlaying they could be underlaying
Perfeito
I could have underlaid you could have underlaid she could have underlaid we could have underlaid you could have underlaid they could have underlaid
Perfeito com V-ing
I could have been underlaying you could have been underlaying she could have been underlaying we could have been underlaying you could have been underlaying they could have been underlaying
Negação
Forma simple
I could not underlay you could not underlay she could not underlay we could not underlay you could not underlay they could not underlay
Forma com V-ing
I could not be underlaying you could not be underlaying she could not be underlaying we could not be underlaying you could not be underlaying they could not be underlaying
Perfeito
I could not have underlaid you could not have underlaid she could not have underlaid we could not have underlaid you could not have underlaid they could not have underlaid
Perfeito com V-ing
I could not have been underlaying you could not have been underlaying she could not have been underlaying we could not have been underlaying you could not have been underlaying they could not have been underlaying
Forma interrogativa
Forma simple
could I underlay? could you underlay? could she underlay? could we underlay? could you underlay? could they underlay?
Forma com V-ing
could I be underlaying? could you be underlaying? could she be underlaying? could we be underlaying? could you be underlaying? could they be underlaying?
Perfeito
could I have underlaid? could you have underlaid? could she have underlaid? could we have underlaid? could you have underlaid? could they have underlaid?
Perfeito com V-ing
could I have been underlaying? could you have been underlaying? could she have been underlaying? could we have been underlaying? could you have been underlaying? could they have been underlaying?
Forma interro-Negação
Forma simple
could I not underlay? could you not underlay? could she not underlay? could we not underlay? could you not underlay? could they not underlay?
Forma com V-ing
could I not be underlaying? could you not be underlaying? could she not be underlaying? could we not be underlaying? could you not be underlaying? could they not be underlaying?
Perfeito
could I not have underlaid? could you not have underlaid? could she not have underlaid? could we not have underlaid? could you not have underlaid? could they not have underlaid?
Perfeito com V-ing
could I not have been underlaying? could you not have been underlaying? could she not have been underlaying? could we not have been underlaying? could you not have been underlaying? could they not have been underlaying?