must passivize
Regular verb: passivize - passivized- passivized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must passivize
you must passivize
she must passivize
we must passivize
you must passivize
they must passivize 	I must be passivizing
you must be passivizing
she must be passivizing
we must be passivizing
you must be passivizing
they must be passivizing	I must have passivized
you must have passivized
she must have passivized
we must have passivized
you must have passivized
they must have passivized	I must have been passivizing
you must have been passivizing
she must have been passivizing
we must have been passivizing
you must have been passivizing
they must have been passivizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't passivize
you mustn't passivize
she mustn't passivize
we mustn't passivize
you mustn't passivize
they mustn't passivize 	I mustn't be passivizing
you mustn't be passivizing
she mustn't be passivizing
we mustn't be passivizing
you mustn't be passivizing
they mustn't be passivizing	I mustn't have passivized
you mustn't have passivized
she mustn't have passivized
we mustn't have passivized
you mustn't have passivized
they mustn't have passivized	I mustn't have been passivizing
you mustn't have been passivizing
she mustn't have been passivizing
we mustn't have been passivizing
you mustn't have been passivizing
they mustn't have been passivizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I passivize?
must you passivize?
must she passivize?
must we passivize?
must you passivize?
must they passivize? 	must I be passivizing?
must you be passivizing?
must she be passivizing?
must we be passivizing?
must you be passivizing?
must they be passivizing? 	must I have passivized?
must you have passivized?
must she have passivized?
must we have passivized?
must you have passivized?
must they have passivized? 	must I have been passivizing?
must you have been passivizing?
must she have been passivizing?
must we have been passivizing?
must you have been passivizing?
must they have been passivizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I passivize?
mustn't you passivize?
mustn't she passivize?
mustn't we passivize?
mustn't you passivize?
mustn't they passivize? 	mustn't I be passivizing?
mustn't you be passivizing?
mustn't she be passivizing?
mustn't we be passivizing?
mustn't you be passivizing?
mustn't they be passivizing? 	mustn't I have passivized?
mustn't you have passivized?
mustn't she have passivized?
mustn't we have passivized?
mustn't you have passivized?
mustn't they have passivized? 	mustn't I have been passivizing?
mustn't you have been passivizing?
mustn't she have been passivizing?
mustn't we have been passivizing?
mustn't you have been passivizing?
mustn't they have been passivizing?