must disillusion
Regular verb: disillusion - disillusioned- disillusioned

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't disillusion
you mustn't disillusion
he mustn't disillusion
we mustn't disillusion
you mustn't disillusion
they mustn't disillusion 	I mustn't be disillusioning
you mustn't be disillusioning
he mustn't be disillusioning
we mustn't be disillusioning
you mustn't be disillusioning
they mustn't be disillusioning	I mustn't have disillusioned
you mustn't have disillusioned
he mustn't have disillusioned
we mustn't have disillusioned
you mustn't have disillusioned
they mustn't have disillusioned	I mustn't have been disillusioning
you mustn't have been disillusioning
he mustn't have been disillusioning
we mustn't have been disillusioning
you mustn't have been disillusioning
they mustn't have been disillusioning	

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

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