must syllogise
Regular verb: syllogise - syllogised- syllogised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must syllogise
you must syllogise
she must syllogise
we must syllogise
you must syllogise
they must syllogise 	I must be syllogising
you must be syllogising
she must be syllogising
we must be syllogising
you must be syllogising
they must be syllogising	I must have syllogised
you must have syllogised
she must have syllogised
we must have syllogised
you must have syllogised
they must have syllogised	I must have been syllogising
you must have been syllogising
she must have been syllogising
we must have been syllogising
you must have been syllogising
they must have been syllogising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't syllogise
you mustn't syllogise
she mustn't syllogise
we mustn't syllogise
you mustn't syllogise
they mustn't syllogise 	I mustn't be syllogising
you mustn't be syllogising
she mustn't be syllogising
we mustn't be syllogising
you mustn't be syllogising
they mustn't be syllogising	I mustn't have syllogised
you mustn't have syllogised
she mustn't have syllogised
we mustn't have syllogised
you mustn't have syllogised
they mustn't have syllogised	I mustn't have been syllogising
you mustn't have been syllogising
she mustn't have been syllogising
we mustn't have been syllogising
you mustn't have been syllogising
they mustn't have been syllogising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I syllogise?
must you syllogise?
must she syllogise?
must we syllogise?
must you syllogise?
must they syllogise? 	must I be syllogising?
must you be syllogising?
must she be syllogising?
must we be syllogising?
must you be syllogising?
must they be syllogising? 	must I have syllogised?
must you have syllogised?
must she have syllogised?
must we have syllogised?
must you have syllogised?
must they have syllogised? 	must I have been syllogising?
must you have been syllogising?
must she have been syllogising?
must we have been syllogising?
must you have been syllogising?
must they have been syllogising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I syllogise?
mustn't you syllogise?
mustn't she syllogise?
mustn't we syllogise?
mustn't you syllogise?
mustn't they syllogise? 	mustn't I be syllogising?
mustn't you be syllogising?
mustn't she be syllogising?
mustn't we be syllogising?
mustn't you be syllogising?
mustn't they be syllogising? 	mustn't I have syllogised?
mustn't you have syllogised?
mustn't she have syllogised?
mustn't we have syllogised?
mustn't you have syllogised?
mustn't they have syllogised? 	mustn't I have been syllogising?
mustn't you have been syllogising?
mustn't she have been syllogising?
mustn't we have been syllogising?
mustn't you have been syllogising?
mustn't they have been syllogising?