must syllogize
Regular verb: syllogize - syllogized- syllogized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must syllogize
you must syllogize
he must syllogize
we must syllogize
you must syllogize
they must syllogize 	I must be syllogizing
you must be syllogizing
he must be syllogizing
we must be syllogizing
you must be syllogizing
they must be syllogizing	I must have syllogized
you must have syllogized
he must have syllogized
we must have syllogized
you must have syllogized
they must have syllogized	I must have been syllogizing
you must have been syllogizing
he must have been syllogizing
we must have been syllogizing
you must have been syllogizing
they must have been syllogizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't syllogize
you mustn't syllogize
he mustn't syllogize
we mustn't syllogize
you mustn't syllogize
they mustn't syllogize 	I mustn't be syllogizing
you mustn't be syllogizing
he mustn't be syllogizing
we mustn't be syllogizing
you mustn't be syllogizing
they mustn't be syllogizing	I mustn't have syllogized
you mustn't have syllogized
he mustn't have syllogized
we mustn't have syllogized
you mustn't have syllogized
they mustn't have syllogized	I mustn't have been syllogizing
you mustn't have been syllogizing
he mustn't have been syllogizing
we mustn't have been syllogizing
you mustn't have been syllogizing
they mustn't have been syllogizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I syllogize?
must you syllogize?
must he syllogize?
must we syllogize?
must you syllogize?
must they syllogize? 	must I be syllogizing?
must you be syllogizing?
must he be syllogizing?
must we be syllogizing?
must you be syllogizing?
must they be syllogizing? 	must I have syllogized?
must you have syllogized?
must he have syllogized?
must we have syllogized?
must you have syllogized?
must they have syllogized? 	must I have been syllogizing?
must you have been syllogizing?
must he have been syllogizing?
must we have been syllogizing?
must you have been syllogizing?
must they have been syllogizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I syllogize?
mustn't you syllogize?
mustn't he syllogize?
mustn't we syllogize?
mustn't you syllogize?
mustn't they syllogize? 	mustn't I be syllogizing?
mustn't you be syllogizing?
mustn't he be syllogizing?
mustn't we be syllogizing?
mustn't you be syllogizing?
mustn't they be syllogizing? 	mustn't I have syllogized?
mustn't you have syllogized?
mustn't he have syllogized?
mustn't we have syllogized?
mustn't you have syllogized?
mustn't they have syllogized? 	mustn't I have been syllogizing?
mustn't you have been syllogizing?
mustn't he have been syllogizing?
mustn't we have been syllogizing?
mustn't you have been syllogizing?
mustn't they have been syllogizing?