must proliferate
Regular verb: proliferate - proliferated- proliferated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must proliferate
you must proliferate
he must proliferate
we must proliferate
you must proliferate
they must proliferate 	I must be proliferating
you must be proliferating
he must be proliferating
we must be proliferating
you must be proliferating
they must be proliferating	I must have proliferated
you must have proliferated
he must have proliferated
we must have proliferated
you must have proliferated
they must have proliferated	I must have been proliferating
you must have been proliferating
he must have been proliferating
we must have been proliferating
you must have been proliferating
they must have been proliferating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't proliferate
you mustn't proliferate
he mustn't proliferate
we mustn't proliferate
you mustn't proliferate
they mustn't proliferate 	I mustn't be proliferating
you mustn't be proliferating
he mustn't be proliferating
we mustn't be proliferating
you mustn't be proliferating
they mustn't be proliferating	I mustn't have proliferated
you mustn't have proliferated
he mustn't have proliferated
we mustn't have proliferated
you mustn't have proliferated
they mustn't have proliferated	I mustn't have been proliferating
you mustn't have been proliferating
he mustn't have been proliferating
we mustn't have been proliferating
you mustn't have been proliferating
they mustn't have been proliferating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I proliferate?
must you proliferate?
must he proliferate?
must we proliferate?
must you proliferate?
must they proliferate? 	must I be proliferating?
must you be proliferating?
must he be proliferating?
must we be proliferating?
must you be proliferating?
must they be proliferating? 	must I have proliferated?
must you have proliferated?
must he have proliferated?
must we have proliferated?
must you have proliferated?
must they have proliferated? 	must I have been proliferating?
must you have been proliferating?
must he have been proliferating?
must we have been proliferating?
must you have been proliferating?
must they have been proliferating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I proliferate?
mustn't you proliferate?
mustn't he proliferate?
mustn't we proliferate?
mustn't you proliferate?
mustn't they proliferate? 	mustn't I be proliferating?
mustn't you be proliferating?
mustn't he be proliferating?
mustn't we be proliferating?
mustn't you be proliferating?
mustn't they be proliferating? 	mustn't I have proliferated?
mustn't you have proliferated?
mustn't he have proliferated?
mustn't we have proliferated?
mustn't you have proliferated?
mustn't they have proliferated? 	mustn't I have been proliferating?
mustn't you have been proliferating?
mustn't he have been proliferating?
mustn't we have been proliferating?
mustn't you have been proliferating?
mustn't they have been proliferating?