must action
Regular verb: action - actioned- actioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must action
you must action
he must action
we must action
you must action
they must action 	I must be actioning
you must be actioning
he must be actioning
we must be actioning
you must be actioning
they must be actioning	I must have actioned
you must have actioned
he must have actioned
we must have actioned
you must have actioned
they must have actioned	I must have been actioning
you must have been actioning
he must have been actioning
we must have been actioning
you must have been actioning
they must have been actioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't action
you mustn't action
he mustn't action
we mustn't action
you mustn't action
they mustn't action 	I mustn't be actioning
you mustn't be actioning
he mustn't be actioning
we mustn't be actioning
you mustn't be actioning
they mustn't be actioning	I mustn't have actioned
you mustn't have actioned
he mustn't have actioned
we mustn't have actioned
you mustn't have actioned
they mustn't have actioned	I mustn't have been actioning
you mustn't have been actioning
he mustn't have been actioning
we mustn't have been actioning
you mustn't have been actioning
they mustn't have been actioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I action?
must you action?
must he action?
must we action?
must you action?
must they action? 	must I be actioning?
must you be actioning?
must he be actioning?
must we be actioning?
must you be actioning?
must they be actioning? 	must I have actioned?
must you have actioned?
must he have actioned?
must we have actioned?
must you have actioned?
must they have actioned? 	must I have been actioning?
must you have been actioning?
must he have been actioning?
must we have been actioning?
must you have been actioning?
must they have been actioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I action?
mustn't you action?
mustn't he action?
mustn't we action?
mustn't you action?
mustn't they action? 	mustn't I be actioning?
mustn't you be actioning?
mustn't he be actioning?
mustn't we be actioning?
mustn't you be actioning?
mustn't they be actioning? 	mustn't I have actioned?
mustn't you have actioned?
mustn't he have actioned?
mustn't we have actioned?
mustn't you have actioned?
mustn't they have actioned? 	mustn't I have been actioning?
mustn't you have been actioning?
mustn't he have been actioning?
mustn't we have been actioning?
mustn't you have been actioning?
mustn't they have been actioning?