must colonize
Regular verb: colonize - colonized- colonized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must colonize
you must colonize
he must colonize
we must colonize
you must colonize
they must colonize 	I must be colonizing
you must be colonizing
he must be colonizing
we must be colonizing
you must be colonizing
they must be colonizing	I must have colonized
you must have colonized
he must have colonized
we must have colonized
you must have colonized
they must have colonized	I must have been colonizing
you must have been colonizing
he must have been colonizing
we must have been colonizing
you must have been colonizing
they must have been colonizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not colonize
you must not colonize
he must not colonize
we must not colonize
you must not colonize
they must not colonize 	I must not be colonizing
you must not be colonizing
he must not be colonizing
we must not be colonizing
you must not be colonizing
they must not be colonizing	I must not have colonized
you must not have colonized
he must not have colonized
we must not have colonized
you must not have colonized
they must not have colonized	I must not have been colonizing
you must not have been colonizing
he must not have been colonizing
we must not have been colonizing
you must not have been colonizing
they must not have been colonizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I colonize?
must you colonize?
must he colonize?
must we colonize?
must you colonize?
must they colonize? 	must I be colonizing?
must you be colonizing?
must he be colonizing?
must we be colonizing?
must you be colonizing?
must they be colonizing? 	must I have colonized?
must you have colonized?
must he have colonized?
must we have colonized?
must you have colonized?
must they have colonized? 	must I have been colonizing?
must you have been colonizing?
must he have been colonizing?
must we have been colonizing?
must you have been colonizing?
must they have been colonizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not colonize?
must you not colonize?
must he not colonize?
must we not colonize?
must you not colonize?
must they not colonize? 	must I not be colonizing?
must you not be colonizing?
must he not be colonizing?
must we not be colonizing?
must you not be colonizing?
must they not be colonizing? 	must I not have colonized?
must you not have colonized?
must he not have colonized?
must we not have colonized?
must you not have colonized?
must they not have colonized? 	must I not have been colonizing?
must you not have been colonizing?
must he not have been colonizing?
must we not have been colonizing?
must you not have been colonizing?
must they not have been colonizing?