must truncheon
Regular verb: truncheon - truncheoned- truncheoned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must truncheon
you must truncheon
he must truncheon
we must truncheon
you must truncheon
they must truncheon 	I must be truncheoning
you must be truncheoning
he must be truncheoning
we must be truncheoning
you must be truncheoning
they must be truncheoning	I must have truncheoned
you must have truncheoned
he must have truncheoned
we must have truncheoned
you must have truncheoned
they must have truncheoned	I must have been truncheoning
you must have been truncheoning
he must have been truncheoning
we must have been truncheoning
you must have been truncheoning
they must have been truncheoning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't truncheon
you mustn't truncheon
he mustn't truncheon
we mustn't truncheon
you mustn't truncheon
they mustn't truncheon 	I mustn't be truncheoning
you mustn't be truncheoning
he mustn't be truncheoning
we mustn't be truncheoning
you mustn't be truncheoning
they mustn't be truncheoning	I mustn't have truncheoned
you mustn't have truncheoned
he mustn't have truncheoned
we mustn't have truncheoned
you mustn't have truncheoned
they mustn't have truncheoned	I mustn't have been truncheoning
you mustn't have been truncheoning
he mustn't have been truncheoning
we mustn't have been truncheoning
you mustn't have been truncheoning
they mustn't have been truncheoning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I truncheon?
must you truncheon?
must he truncheon?
must we truncheon?
must you truncheon?
must they truncheon? 	must I be truncheoning?
must you be truncheoning?
must he be truncheoning?
must we be truncheoning?
must you be truncheoning?
must they be truncheoning? 	must I have truncheoned?
must you have truncheoned?
must he have truncheoned?
must we have truncheoned?
must you have truncheoned?
must they have truncheoned? 	must I have been truncheoning?
must you have been truncheoning?
must he have been truncheoning?
must we have been truncheoning?
must you have been truncheoning?
must they have been truncheoning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I truncheon?
mustn't you truncheon?
mustn't he truncheon?
mustn't we truncheon?
mustn't you truncheon?
mustn't they truncheon? 	mustn't I be truncheoning?
mustn't you be truncheoning?
mustn't he be truncheoning?
mustn't we be truncheoning?
mustn't you be truncheoning?
mustn't they be truncheoning? 	mustn't I have truncheoned?
mustn't you have truncheoned?
mustn't he have truncheoned?
mustn't we have truncheoned?
mustn't you have truncheoned?
mustn't they have truncheoned? 	mustn't I have been truncheoning?
mustn't you have been truncheoning?
mustn't he have been truncheoning?
mustn't we have been truncheoning?
mustn't you have been truncheoning?
mustn't they have been truncheoning?