I could dive you could dive he could dive we could dive you could dive they could dive
Forma com V-ing
I could be diving you could be diving he could be diving we could be diving you could be diving they could be diving
Perfeito
I could have dived you could have dived he could have dived we could have dived you could have dived they could have dived
Perfeito com V-ing
I could have been diving you could have been diving he could have been diving we could have been diving you could have been diving they could have been diving
Negação
Forma simple
I couldn't dive you couldn't dive he couldn't dive we couldn't dive you couldn't dive they couldn't dive
Forma com V-ing
I couldn't be diving you couldn't be diving he couldn't be diving we couldn't be diving you couldn't be diving they couldn't be diving
Perfeito
I couldn't have dived you couldn't have dived he couldn't have dived we couldn't have dived you couldn't have dived they couldn't have dived
Perfeito com V-ing
I couldn't have been diving you couldn't have been diving he couldn't have been diving we couldn't have been diving you couldn't have been diving they couldn't have been diving
Forma interrogativa
Forma simple
could I dive? could you dive? could he dive? could we dive? could you dive? could they dive?
Forma com V-ing
could I be diving? could you be diving? could he be diving? could we be diving? could you be diving? could they be diving?
Perfeito
could I have dived? could you have dived? could he have dived? could we have dived? could you have dived? could they have dived?
Perfeito com V-ing
could I have been diving? could you have been diving? could he have been diving? could we have been diving? could you have been diving? could they have been diving?
Forma interro-Negação
Forma simple
couldn't I dive? couldn't you dive? couldn't he dive? couldn't we dive? couldn't you dive? couldn't they dive?
Forma com V-ing
couldn't I be diving? couldn't you be diving? couldn't he be diving? couldn't we be diving? couldn't you be diving? couldn't they be diving?
Perfeito
couldn't I have dived? couldn't you have dived? couldn't he have dived? couldn't we have dived? couldn't you have dived? couldn't they have dived?
Perfeito com V-ing
couldn't I have been diving? couldn't you have been diving? couldn't he have been diving? couldn't we have been diving? couldn't you have been diving? couldn't they have been diving?