could revert
Regular verb: revert - reverted- reverted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could revert
you could revert
she could revert
we could revert
you could revert
they could revert 	I could be reverting
you could be reverting
she could be reverting
we could be reverting
you could be reverting
they could be reverting	I could have reverted
you could have reverted
she 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
she could have been reverting
we could have been reverting
you could have been reverting
they could have been reverting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not revert
you could not revert
she could not revert
we could not revert
you could not revert
they could not revert 	I could not be reverting
you could not be reverting
she could not be reverting
we could not be reverting
you could not be reverting
they could not be reverting	I could not have reverted
you could not have reverted
she could not have reverted
we could not have reverted
you could not have reverted
they could not have reverted	I could not have been reverting
you could not have been reverting
she could not have been reverting
we could not have been reverting
you could not have been reverting
they could not have been reverting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I revert?
could you revert?
could she revert?
could we revert?
could you revert?
could they revert? 	could I be reverting?
could you be reverting?
could she be reverting?
could we be reverting?
could you be reverting?
could they be reverting? 	could I have reverted?
could you have reverted?
could she 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 she have been reverting?
could we have been reverting?
could you have been reverting?
could they have been reverting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not revert?
could you not revert?
could she not revert?
could we not revert?
could you not revert?
could they not revert? 	could I not be reverting?
could you not be reverting?
could she not be reverting?
could we not be reverting?
could you not be reverting?
could they not be reverting? 	could I not have reverted?
could you not have reverted?
could she not have reverted?
could we not have reverted?
could you not have reverted?
could they not have reverted? 	could I not have been reverting?
could you not have been reverting?
could she not have been reverting?
could we not have been reverting?
could you not have been reverting?
could they not have been reverting?