must decolorize
Regular verb: decolorize - decolorized- decolorized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must decolorize
you must decolorize
he must decolorize
we must decolorize
you must decolorize
they must decolorize 	I must be decolorizing
you must be decolorizing
he must be decolorizing
we must be decolorizing
you must be decolorizing
they must be decolorizing	I must have decolorized
you must have decolorized
he must have decolorized
we must have decolorized
you must have decolorized
they must have decolorized	I must have been decolorizing
you must have been decolorizing
he must have been decolorizing
we must have been decolorizing
you must have been decolorizing
they must have been decolorizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not decolorize
you must not decolorize
he must not decolorize
we must not decolorize
you must not decolorize
they must not decolorize 	I must not be decolorizing
you must not be decolorizing
he must not be decolorizing
we must not be decolorizing
you must not be decolorizing
they must not be decolorizing	I must not have decolorized
you must not have decolorized
he must not have decolorized
we must not have decolorized
you must not have decolorized
they must not have decolorized	I must not have been decolorizing
you must not have been decolorizing
he must not have been decolorizing
we must not have been decolorizing
you must not have been decolorizing
they must not have been decolorizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I decolorize?
must you decolorize?
must he decolorize?
must we decolorize?
must you decolorize?
must they decolorize? 	must I be decolorizing?
must you be decolorizing?
must he be decolorizing?
must we be decolorizing?
must you be decolorizing?
must they be decolorizing? 	must I have decolorized?
must you have decolorized?
must he have decolorized?
must we have decolorized?
must you have decolorized?
must they have decolorized? 	must I have been decolorizing?
must you have been decolorizing?
must he have been decolorizing?
must we have been decolorizing?
must you have been decolorizing?
must they have been decolorizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not decolorize?
must you not decolorize?
must he not decolorize?
must we not decolorize?
must you not decolorize?
must they not decolorize? 	must I not be decolorizing?
must you not be decolorizing?
must he not be decolorizing?
must we not be decolorizing?
must you not be decolorizing?
must they not be decolorizing? 	must I not have decolorized?
must you not have decolorized?
must he not have decolorized?
must we not have decolorized?
must you not have decolorized?
must they not have decolorized? 	must I not have been decolorizing?
must you not have been decolorizing?
must he not have been decolorizing?
must we not have been decolorizing?
must you not have been decolorizing?
must they not have been decolorizing?