I could lower you could lower he could lower we could lower you could lower they could lower
Forma com V-ing
I could be lowering you could be lowering he could be lowering we could be lowering you could be lowering they could be lowering
Perfeito
I could have lowered you could have lowered he could have lowered we could have lowered you could have lowered they could have lowered
Perfeito com V-ing
I could have been lowering you could have been lowering he could have been lowering we could have been lowering you could have been lowering they could have been lowering
Negação
Forma simple
I could not lower you could not lower he could not lower we could not lower you could not lower they could not lower
Forma com V-ing
I could not be lowering you could not be lowering he could not be lowering we could not be lowering you could not be lowering they could not be lowering
Perfeito
I could not have lowered you could not have lowered he could not have lowered we could not have lowered you could not have lowered they could not have lowered
Perfeito com V-ing
I could not have been lowering you could not have been lowering he could not have been lowering we could not have been lowering you could not have been lowering they could not have been lowering
Forma interrogativa
Forma simple
could I lower? could you lower? could he lower? could we lower? could you lower? could they lower?
Forma com V-ing
could I be lowering? could you be lowering? could he be lowering? could we be lowering? could you be lowering? could they be lowering?
Perfeito
could I have lowered? could you have lowered? could he have lowered? could we have lowered? could you have lowered? could they have lowered?
Perfeito com V-ing
could I have been lowering? could you have been lowering? could he have been lowering? could we have been lowering? could you have been lowering? could they have been lowering?
Forma interro-Negação
Forma simple
could I not lower? could you not lower? could he not lower? could we not lower? could you not lower? could they not lower?
Forma com V-ing
could I not be lowering? could you not be lowering? could he not be lowering? could we not be lowering? could you not be lowering? could they not be lowering?
Perfeito
could I not have lowered? could you not have lowered? could he not have lowered? could we not have lowered? could you not have lowered? could they not have lowered?
Perfeito com V-ing
could I not have been lowering? could you not have been lowering? could he not have been lowering? could we not have been lowering? could you not have been lowering? could they not have been lowering?