must colourize
Regular verb: colourize - colourized- colourized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must colourize
you must colourize
he must colourize
we must colourize
you must colourize
they must colourize 	I must be colourizing
you must be colourizing
he must be colourizing
we must be colourizing
you must be colourizing
they must be colourizing	I must have colourized
you must have colourized
he must have colourized
we must have colourized
you must have colourized
they must have colourized	I must have been colourizing
you must have been colourizing
he must have been colourizing
we must have been colourizing
you must have been colourizing
they must have been colourizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't colourize
you mustn't colourize
he mustn't colourize
we mustn't colourize
you mustn't colourize
they mustn't colourize 	I mustn't be colourizing
you mustn't be colourizing
he mustn't be colourizing
we mustn't be colourizing
you mustn't be colourizing
they mustn't be colourizing	I mustn't have colourized
you mustn't have colourized
he mustn't have colourized
we mustn't have colourized
you mustn't have colourized
they mustn't have colourized	I mustn't have been colourizing
you mustn't have been colourizing
he mustn't have been colourizing
we mustn't have been colourizing
you mustn't have been colourizing
they mustn't have been colourizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I colourize?
must you colourize?
must he colourize?
must we colourize?
must you colourize?
must they colourize? 	must I be colourizing?
must you be colourizing?
must he be colourizing?
must we be colourizing?
must you be colourizing?
must they be colourizing? 	must I have colourized?
must you have colourized?
must he have colourized?
must we have colourized?
must you have colourized?
must they have colourized? 	must I have been colourizing?
must you have been colourizing?
must he have been colourizing?
must we have been colourizing?
must you have been colourizing?
must they have been colourizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I colourize?
mustn't you colourize?
mustn't he colourize?
mustn't we colourize?
mustn't you colourize?
mustn't they colourize? 	mustn't I be colourizing?
mustn't you be colourizing?
mustn't he be colourizing?
mustn't we be colourizing?
mustn't you be colourizing?
mustn't they be colourizing? 	mustn't I have colourized?
mustn't you have colourized?
mustn't he have colourized?
mustn't we have colourized?
mustn't you have colourized?
mustn't they have colourized? 	mustn't I have been colourizing?
mustn't you have been colourizing?
mustn't he have been colourizing?
mustn't we have been colourizing?
mustn't you have been colourizing?
mustn't they have been colourizing?