I could revert you could revert she could revert we could revert you could revert they could revert
Forma com V-ing
I could be reverting you could be reverting she could be reverting we could be reverting you could be reverting they could be reverting
Perfeito
I could have reverted you could have reverted she could have reverted we could have reverted you could have reverted they could have reverted
Perfeito com V-ing
I could have been reverting you could have been reverting she could have been reverting we could have been reverting you could have been reverting they could have been reverting
Negação
Forma simple
I couldn't revert you couldn't revert she couldn't revert we couldn't revert you couldn't revert they couldn't revert
Forma com V-ing
I couldn't be reverting you couldn't be reverting she couldn't be reverting we couldn't be reverting you couldn't be reverting they couldn't be reverting
Perfeito
I couldn't have reverted you couldn't have reverted she couldn't have reverted we couldn't have reverted you couldn't have reverted they couldn't have reverted
Perfeito com V-ing
I couldn't have been reverting you couldn't have been reverting she 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 she revert? could we revert? could you revert? could they revert?
Forma com V-ing
could I be reverting? could you be reverting? could she be reverting? could we be reverting? could you be reverting? could they be reverting?
Perfeito
could I have reverted? could you have reverted? could she have reverted? could we have reverted? could you have reverted? could they have reverted?
Perfeito com V-ing
could I have been reverting? could you have been reverting? could she have been reverting? could we have been reverting? could you have been reverting? could they have been reverting?
Forma interro-Negação
Forma simple
couldn't I revert? couldn't you revert? couldn't she revert? couldn't we revert? couldn't you revert? couldn't they revert?
Forma com V-ing
couldn't I be reverting? couldn't you be reverting? couldn't she be reverting? couldn't we be reverting? couldn't you be reverting? couldn't they be reverting?
Perfeito
couldn't I have reverted? couldn't you have reverted? couldn't she have reverted? couldn't we have reverted? couldn't you have reverted? couldn't they have reverted?
Perfeito com V-ing
couldn't I have been reverting? couldn't you have been reverting? couldn't she have been reverting? couldn't we have been reverting? couldn't you have been reverting? couldn't they have been reverting?