can righten
Regular verb: righten - rightened- rightened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can righten
you can righten
he can righten
we can righten
you can righten
they can righten 	I can be rightening
you can be rightening
he can be rightening
we can be rightening
you can be rightening
they can be rightening	I can have rightened
you can have rightened
he can have rightened
we can have rightened
you can have rightened
they can have rightened	I can have been rightening
you can have been rightening
he can have been rightening
we can have been rightening
you can have been rightening
they can have been rightening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot righten
you cannot righten
he cannot righten
we cannot righten
you cannot righten
they cannot righten 	I cannot be rightening
you cannot be rightening
he cannot be rightening
we cannot be rightening
you cannot be rightening
they cannot be rightening	I cannot have rightened
you cannot have rightened
he cannot have rightened
we cannot have rightened
you cannot have rightened
they cannot have rightened	I cannot have been rightening
you cannot have been rightening
he cannot have been rightening
we cannot have been rightening
you cannot have been rightening
they cannot have been rightening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I righten?
can you righten?
can he righten?
can we righten?
can you righten?
can they righten? 	can I be rightening?
can you be rightening?
can he be rightening?
can we be rightening?
can you be rightening?
can they be rightening? 	can I have rightened?
can you have rightened?
can he have rightened?
can we have rightened?
can you have rightened?
can they have rightened? 	can I have been rightening?
can you have been rightening?
can he have been rightening?
can we have been rightening?
can you have been rightening?
can they have been rightening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not righten?
can you not righten?
can he not righten?
can we not righten?
can you not righten?
can they not righten? 	can I not be rightening?
can you not be rightening?
can he not be rightening?
can we not be rightening?
can you not be rightening?
can they not be rightening? 	can I not have rightened?
can you not have rightened?
can he not have rightened?
can we not have rightened?
can you not have rightened?
can they not have rightened? 	can I not have been rightening?
can you not have been rightening?
can he not have been rightening?
can we not have been rightening?
can you not have been rightening?
can they not have been rightening?