must venture
Regular verb: venture - ventured- ventured

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must venture
you must venture
he must venture
we must venture
you must venture
they must venture 	I must be venturing
you must be venturing
he must be venturing
we must be venturing
you must be venturing
they must be venturing	I must have ventured
you must have ventured
he must have ventured
we must have ventured
you must have ventured
they must have ventured	I must have been venturing
you must have been venturing
he must have been venturing
we must have been venturing
you must have been venturing
they must have been venturing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't venture
you mustn't venture
he mustn't venture
we mustn't venture
you mustn't venture
they mustn't venture 	I mustn't be venturing
you mustn't be venturing
he mustn't be venturing
we mustn't be venturing
you mustn't be venturing
they mustn't be venturing	I mustn't have ventured
you mustn't have ventured
he mustn't have ventured
we mustn't have ventured
you mustn't have ventured
they mustn't have ventured	I mustn't have been venturing
you mustn't have been venturing
he mustn't have been venturing
we mustn't have been venturing
you mustn't have been venturing
they mustn't have been venturing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I venture?
must you venture?
must he venture?
must we venture?
must you venture?
must they venture? 	must I be venturing?
must you be venturing?
must he be venturing?
must we be venturing?
must you be venturing?
must they be venturing? 	must I have ventured?
must you have ventured?
must he have ventured?
must we have ventured?
must you have ventured?
must they have ventured? 	must I have been venturing?
must you have been venturing?
must he have been venturing?
must we have been venturing?
must you have been venturing?
must they have been venturing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I venture?
mustn't you venture?
mustn't he venture?
mustn't we venture?
mustn't you venture?
mustn't they venture? 	mustn't I be venturing?
mustn't you be venturing?
mustn't he be venturing?
mustn't we be venturing?
mustn't you be venturing?
mustn't they be venturing? 	mustn't I have ventured?
mustn't you have ventured?
mustn't he have ventured?
mustn't we have ventured?
mustn't you have ventured?
mustn't they have ventured? 	mustn't I have been venturing?
mustn't you have been venturing?
mustn't he have been venturing?
mustn't we have been venturing?
mustn't you have been venturing?
mustn't they have been venturing?