must bituminize
Regular verb: bituminize - bituminized- bituminized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must bituminize
you must bituminize
he must bituminize
we must bituminize
you must bituminize
they must bituminize 	I must be bituminizing
you must be bituminizing
he must be bituminizing
we must be bituminizing
you must be bituminizing
they must be bituminizing	I must have bituminized
you must have bituminized
he must have bituminized
we must have bituminized
you must have bituminized
they must have bituminized	I must have been bituminizing
you must have been bituminizing
he must have been bituminizing
we must have been bituminizing
you must have been bituminizing
they must have been bituminizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't bituminize
you mustn't bituminize
he mustn't bituminize
we mustn't bituminize
you mustn't bituminize
they mustn't bituminize 	I mustn't be bituminizing
you mustn't be bituminizing
he mustn't be bituminizing
we mustn't be bituminizing
you mustn't be bituminizing
they mustn't be bituminizing	I mustn't have bituminized
you mustn't have bituminized
he mustn't have bituminized
we mustn't have bituminized
you mustn't have bituminized
they mustn't have bituminized	I mustn't have been bituminizing
you mustn't have been bituminizing
he mustn't have been bituminizing
we mustn't have been bituminizing
you mustn't have been bituminizing
they mustn't have been bituminizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I bituminize?
must you bituminize?
must he bituminize?
must we bituminize?
must you bituminize?
must they bituminize? 	must I be bituminizing?
must you be bituminizing?
must he be bituminizing?
must we be bituminizing?
must you be bituminizing?
must they be bituminizing? 	must I have bituminized?
must you have bituminized?
must he have bituminized?
must we have bituminized?
must you have bituminized?
must they have bituminized? 	must I have been bituminizing?
must you have been bituminizing?
must he have been bituminizing?
must we have been bituminizing?
must you have been bituminizing?
must they have been bituminizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I bituminize?
mustn't you bituminize?
mustn't he bituminize?
mustn't we bituminize?
mustn't you bituminize?
mustn't they bituminize? 	mustn't I be bituminizing?
mustn't you be bituminizing?
mustn't he be bituminizing?
mustn't we be bituminizing?
mustn't you be bituminizing?
mustn't they be bituminizing? 	mustn't I have bituminized?
mustn't you have bituminized?
mustn't he have bituminized?
mustn't we have bituminized?
mustn't you have bituminized?
mustn't they have bituminized? 	mustn't I have been bituminizing?
mustn't you have been bituminizing?
mustn't he have been bituminizing?
mustn't we have been bituminizing?
mustn't you have been bituminizing?
mustn't they have been bituminizing?