I could shiver you could shiver she could shiver we could shiver you could shiver they could shiver
Forma com V-ing
I could be shivering you could be shivering she could be shivering we could be shivering you could be shivering they could be shivering
Perfeito
I could have shivered you could have shivered she could have shivered we could have shivered you could have shivered they could have shivered
Perfeito com V-ing
I could have been shivering you could have been shivering she could have been shivering we could have been shivering you could have been shivering they could have been shivering
Negação
Forma simple
I couldn't shiver you couldn't shiver she couldn't shiver we couldn't shiver you couldn't shiver they couldn't shiver
Forma com V-ing
I couldn't be shivering you couldn't be shivering she couldn't be shivering we couldn't be shivering you couldn't be shivering they couldn't be shivering
Perfeito
I couldn't have shivered you couldn't have shivered she couldn't have shivered we couldn't have shivered you couldn't have shivered they couldn't have shivered
Perfeito com V-ing
I couldn't have been shivering you couldn't have been shivering she couldn't have been shivering we couldn't have been shivering you couldn't have been shivering they couldn't have been shivering
Forma interrogativa
Forma simple
could I shiver? could you shiver? could she shiver? could we shiver? could you shiver? could they shiver?
Forma com V-ing
could I be shivering? could you be shivering? could she be shivering? could we be shivering? could you be shivering? could they be shivering?
Perfeito
could I have shivered? could you have shivered? could she have shivered? could we have shivered? could you have shivered? could they have shivered?
Perfeito com V-ing
could I have been shivering? could you have been shivering? could she have been shivering? could we have been shivering? could you have been shivering? could they have been shivering?
Forma interro-Negação
Forma simple
couldn't I shiver? couldn't you shiver? couldn't she shiver? couldn't we shiver? couldn't you shiver? couldn't they shiver?
Forma com V-ing
couldn't I be shivering? couldn't you be shivering? couldn't she be shivering? couldn't we be shivering? couldn't you be shivering? couldn't they be shivering?
Perfeito
couldn't I have shivered? couldn't you have shivered? couldn't she have shivered? couldn't we have shivered? couldn't you have shivered? couldn't they have shivered?
Perfeito com V-ing
couldn't I have been shivering? couldn't you have been shivering? couldn't she have been shivering? couldn't we have been shivering? couldn't you have been shivering? couldn't they have been shivering?