must charter
Regular verb: charter - chartered- chartered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must charter
you must charter
he must charter
we must charter
you must charter
they must charter 	I must be chartering
you must be chartering
he must be chartering
we must be chartering
you must be chartering
they must be chartering	I must have chartered
you must have chartered
he must have chartered
we must have chartered
you must have chartered
they must have chartered	I must have been chartering
you must have been chartering
he must have been chartering
we must have been chartering
you must have been chartering
they must have been chartering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't charter
you mustn't charter
he mustn't charter
we mustn't charter
you mustn't charter
they mustn't charter 	I mustn't be chartering
you mustn't be chartering
he mustn't be chartering
we mustn't be chartering
you mustn't be chartering
they mustn't be chartering	I mustn't have chartered
you mustn't have chartered
he mustn't have chartered
we mustn't have chartered
you mustn't have chartered
they mustn't have chartered	I mustn't have been chartering
you mustn't have been chartering
he mustn't have been chartering
we mustn't have been chartering
you mustn't have been chartering
they mustn't have been chartering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I charter?
must you charter?
must he charter?
must we charter?
must you charter?
must they charter? 	must I be chartering?
must you be chartering?
must he be chartering?
must we be chartering?
must you be chartering?
must they be chartering? 	must I have chartered?
must you have chartered?
must he have chartered?
must we have chartered?
must you have chartered?
must they have chartered? 	must I have been chartering?
must you have been chartering?
must he have been chartering?
must we have been chartering?
must you have been chartering?
must they have been chartering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I charter?
mustn't you charter?
mustn't he charter?
mustn't we charter?
mustn't you charter?
mustn't they charter? 	mustn't I be chartering?
mustn't you be chartering?
mustn't he be chartering?
mustn't we be chartering?
mustn't you be chartering?
mustn't they be chartering? 	mustn't I have chartered?
mustn't you have chartered?
mustn't he have chartered?
mustn't we have chartered?
mustn't you have chartered?
mustn't they have chartered? 	mustn't I have been chartering?
mustn't you have been chartering?
mustn't he have been chartering?
mustn't we have been chartering?
mustn't you have been chartering?
mustn't they have been chartering?