I could skip you could skip he could skip we could skip you could skip they could skip
Forma con V-ing
I could be skipping you could be skipping he could be skipping we could be skipping you could be skipping they could be skipping
Perfecto
I could have skipped you could have skipped he could have skipped we could have skipped you could have skipped they could have skipped
Perfecto con V-ing
I could have been skipping you could have been skipping he could have been skipping we could have been skipping you could have been skipping they could have been skipping
Negación
Forma simple
I couldn't skip you couldn't skip he couldn't skip we couldn't skip you couldn't skip they couldn't skip
Forma con V-ing
I couldn't be skipping you couldn't be skipping he couldn't be skipping we couldn't be skipping you couldn't be skipping they couldn't be skipping
Perfecto
I couldn't have skipped you couldn't have skipped he couldn't have skipped we couldn't have skipped you couldn't have skipped they couldn't have skipped
Perfecto con V-ing
I couldn't have been skipping you couldn't have been skipping he couldn't have been skipping we couldn't have been skipping you couldn't have been skipping they couldn't have been skipping
Forma interrogativa
Forma simple
could I skip? could you skip? could he skip? could we skip? could you skip? could they skip?
Forma con V-ing
could I be skipping? could you be skipping? could he be skipping? could we be skipping? could you be skipping? could they be skipping?
Perfecto
could I have skipped? could you have skipped? could he have skipped? could we have skipped? could you have skipped? could they have skipped?
Perfecto con V-ing
could I have been skipping? could you have been skipping? could he have been skipping? could we have been skipping? could you have been skipping? could they have been skipping?
Forma interro-negativa
Forma simple
couldn't I skip? couldn't you skip? couldn't he skip? couldn't we skip? couldn't you skip? couldn't they skip?
Forma con V-ing
couldn't I be skipping? couldn't you be skipping? couldn't he be skipping? couldn't we be skipping? couldn't you be skipping? couldn't they be skipping?
Perfecto
couldn't I have skipped? couldn't you have skipped? couldn't he have skipped? couldn't we have skipped? couldn't you have skipped? couldn't they have skipped?
Perfecto con V-ing
couldn't I have been skipping? couldn't you have been skipping? couldn't he have been skipping? couldn't we have been skipping? couldn't you have been skipping? couldn't they have been skipping?