could revert
Verbo regular: revert - reverted- reverted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could revert
you could revert
he could revert
we could revert
you could revert
they could revert 	I could be reverting
you could be reverting
he could be reverting
we could be reverting
you could be reverting
they could be reverting	I could have reverted
you could have reverted
he could have reverted
we could have reverted
you could have reverted
they could have reverted	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 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't revert
you couldn't revert
he couldn't revert
we couldn't revert
you couldn't revert
they couldn't revert 	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	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	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 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I revert?
could you revert?
could he revert?
could we revert?
could you revert?
could they revert? 	could I be reverting?
could you be reverting?
could he be reverting?
could we be reverting?
could you be reverting?
could they be reverting? 	could I have reverted?
could you have reverted?
could he have reverted?
could we have reverted?
could you have reverted?
could they have reverted? 	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 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I revert?
couldn't you revert?
couldn't he revert?
couldn't we revert?
couldn't you revert?
couldn't they revert? 	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? 	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? 	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?