must companion
Regular verb: companion - companioned- companioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must companion
you must companion
he must companion
we must companion
you must companion
they must companion 	I must be companioning
you must be companioning
he must be companioning
we must be companioning
you must be companioning
they must be companioning	I must have companioned
you must have companioned
he must have companioned
we must have companioned
you must have companioned
they must have companioned	I must have been companioning
you must have been companioning
he must have been companioning
we must have been companioning
you must have been companioning
they must have been companioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't companion
you mustn't companion
he mustn't companion
we mustn't companion
you mustn't companion
they mustn't companion 	I mustn't be companioning
you mustn't be companioning
he mustn't be companioning
we mustn't be companioning
you mustn't be companioning
they mustn't be companioning	I mustn't have companioned
you mustn't have companioned
he mustn't have companioned
we mustn't have companioned
you mustn't have companioned
they mustn't have companioned	I mustn't have been companioning
you mustn't have been companioning
he mustn't have been companioning
we mustn't have been companioning
you mustn't have been companioning
they mustn't have been companioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I companion?
must you companion?
must he companion?
must we companion?
must you companion?
must they companion? 	must I be companioning?
must you be companioning?
must he be companioning?
must we be companioning?
must you be companioning?
must they be companioning? 	must I have companioned?
must you have companioned?
must he have companioned?
must we have companioned?
must you have companioned?
must they have companioned? 	must I have been companioning?
must you have been companioning?
must he have been companioning?
must we have been companioning?
must you have been companioning?
must they have been companioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I companion?
mustn't you companion?
mustn't he companion?
mustn't we companion?
mustn't you companion?
mustn't they companion? 	mustn't I be companioning?
mustn't you be companioning?
mustn't he be companioning?
mustn't we be companioning?
mustn't you be companioning?
mustn't they be companioning? 	mustn't I have companioned?
mustn't you have companioned?
mustn't he have companioned?
mustn't we have companioned?
mustn't you have companioned?
mustn't they have companioned? 	mustn't I have been companioning?
mustn't you have been companioning?
mustn't he have been companioning?
mustn't we have been companioning?
mustn't you have been companioning?
mustn't they have been companioning?