I could dig you could dig she could dig we could dig you could dig they could dig
Forma com V-ing
I could be digging you could be digging she could be digging we could be digging you could be digging they could be digging
Perfeito
I could have dug you could have dug she could have dug we could have dug you could have dug they could have dug
Perfeito com V-ing
I could have been digging you could have been digging she could have been digging we could have been digging you could have been digging they could have been digging
Negação
Forma simple
I couldn't dig you couldn't dig she couldn't dig we couldn't dig you couldn't dig they couldn't dig
Forma com V-ing
I couldn't be digging you couldn't be digging she couldn't be digging we couldn't be digging you couldn't be digging they couldn't be digging
Perfeito
I couldn't have dug you couldn't have dug she couldn't have dug we couldn't have dug you couldn't have dug they couldn't have dug
Perfeito com V-ing
I couldn't have been digging you couldn't have been digging she couldn't have been digging we couldn't have been digging you couldn't have been digging they couldn't have been digging
Forma interrogativa
Forma simple
could I dig? could you dig? could she dig? could we dig? could you dig? could they dig?
Forma com V-ing
could I be digging? could you be digging? could she be digging? could we be digging? could you be digging? could they be digging?
Perfeito
could I have dug? could you have dug? could she have dug? could we have dug? could you have dug? could they have dug?
Perfeito com V-ing
could I have been digging? could you have been digging? could she have been digging? could we have been digging? could you have been digging? could they have been digging?
Forma interro-Negação
Forma simple
couldn't I dig? couldn't you dig? couldn't she dig? couldn't we dig? couldn't you dig? couldn't they dig?
Forma com V-ing
couldn't I be digging? couldn't you be digging? couldn't she be digging? couldn't we be digging? couldn't you be digging? couldn't they be digging?
Perfeito
couldn't I have dug? couldn't you have dug? couldn't she have dug? couldn't we have dug? couldn't you have dug? couldn't they have dug?
Perfeito com V-ing
couldn't I have been digging? couldn't you have been digging? couldn't she have been digging? couldn't we have been digging? couldn't you have been digging? couldn't they have been digging?