must collectivize
Regular verb: collectivize - collectivized- collectivized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must collectivize
you must collectivize
he must collectivize
we must collectivize
you must collectivize
they must collectivize 	I must be collectivizing
you must be collectivizing
he must be collectivizing
we must be collectivizing
you must be collectivizing
they must be collectivizing	I must have collectivized
you must have collectivized
he must have collectivized
we must have collectivized
you must have collectivized
they must have collectivized	I must have been collectivizing
you must have been collectivizing
he must have been collectivizing
we must have been collectivizing
you must have been collectivizing
they must have been collectivizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't collectivize
you mustn't collectivize
he mustn't collectivize
we mustn't collectivize
you mustn't collectivize
they mustn't collectivize 	I mustn't be collectivizing
you mustn't be collectivizing
he mustn't be collectivizing
we mustn't be collectivizing
you mustn't be collectivizing
they mustn't be collectivizing	I mustn't have collectivized
you mustn't have collectivized
he mustn't have collectivized
we mustn't have collectivized
you mustn't have collectivized
they mustn't have collectivized	I mustn't have been collectivizing
you mustn't have been collectivizing
he mustn't have been collectivizing
we mustn't have been collectivizing
you mustn't have been collectivizing
they mustn't have been collectivizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I collectivize?
must you collectivize?
must he collectivize?
must we collectivize?
must you collectivize?
must they collectivize? 	must I be collectivizing?
must you be collectivizing?
must he be collectivizing?
must we be collectivizing?
must you be collectivizing?
must they be collectivizing? 	must I have collectivized?
must you have collectivized?
must he have collectivized?
must we have collectivized?
must you have collectivized?
must they have collectivized? 	must I have been collectivizing?
must you have been collectivizing?
must he have been collectivizing?
must we have been collectivizing?
must you have been collectivizing?
must they have been collectivizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I collectivize?
mustn't you collectivize?
mustn't he collectivize?
mustn't we collectivize?
mustn't you collectivize?
mustn't they collectivize? 	mustn't I be collectivizing?
mustn't you be collectivizing?
mustn't he be collectivizing?
mustn't we be collectivizing?
mustn't you be collectivizing?
mustn't they be collectivizing? 	mustn't I have collectivized?
mustn't you have collectivized?
mustn't he have collectivized?
mustn't we have collectivized?
mustn't you have collectivized?
mustn't they have collectivized? 	mustn't I have been collectivizing?
mustn't you have been collectivizing?
mustn't he have been collectivizing?
mustn't we have been collectivizing?
mustn't you have been collectivizing?
mustn't they have been collectivizing?