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