could disillusion
Regular verb: disillusion - disillusioned- disillusioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could disillusion
you could disillusion
he could disillusion
we could disillusion
you could disillusion
they could disillusion 	I could be disillusioning
you could be disillusioning
he could be disillusioning
we could be disillusioning
you could be disillusioning
they could be disillusioning	I could have disillusioned
you could have disillusioned
he could have disillusioned
we could have disillusioned
you could have disillusioned
they could have disillusioned	I could have been disillusioning
you could have been disillusioning
he could have been disillusioning
we could have been disillusioning
you could have been disillusioning
they could have been disillusioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not disillusion
you could not disillusion
he could not disillusion
we could not disillusion
you could not disillusion
they could not disillusion 	I could not be disillusioning
you could not be disillusioning
he could not be disillusioning
we could not be disillusioning
you could not be disillusioning
they could not be disillusioning	I could not have disillusioned
you could not have disillusioned
he could not have disillusioned
we could not have disillusioned
you could not have disillusioned
they could not have disillusioned	I could not have been disillusioning
you could not have been disillusioning
he could not have been disillusioning
we could not have been disillusioning
you could not have been disillusioning
they could not have been disillusioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I disillusion?
could you disillusion?
could he disillusion?
could we disillusion?
could you disillusion?
could they disillusion? 	could I be disillusioning?
could you be disillusioning?
could he be disillusioning?
could we be disillusioning?
could you be disillusioning?
could they be disillusioning? 	could I have disillusioned?
could you have disillusioned?
could he have disillusioned?
could we have disillusioned?
could you have disillusioned?
could they have disillusioned? 	could I have been disillusioning?
could you have been disillusioning?
could he have been disillusioning?
could we have been disillusioning?
could you have been disillusioning?
could they have been disillusioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not disillusion?
could you not disillusion?
could he not disillusion?
could we not disillusion?
could you not disillusion?
could they not disillusion? 	could I not be disillusioning?
could you not be disillusioning?
could he not be disillusioning?
could we not be disillusioning?
could you not be disillusioning?
could they not be disillusioning? 	could I not have disillusioned?
could you not have disillusioned?
could he not have disillusioned?
could we not have disillusioned?
could you not have disillusioned?
could they not have disillusioned? 	could I not have been disillusioning?
could you not have been disillusioning?
could he not have been disillusioning?
could we not have been disillusioning?
could you not have been disillusioning?
could they not have been disillusioning?