must infinitif
Regular verb: infinitif - infinitifed- infinitifed

, this verb may not exist. Conjugation is given as example.

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must infinitif
you must infinitif
he must infinitif
we must infinitif
you must infinitif
they must infinitif 	I must be infinitifing
you must be infinitifing
he must be infinitifing
we must be infinitifing
you must be infinitifing
they must be infinitifing	I must have infinitifed
you must have infinitifed
he must have infinitifed
we must have infinitifed
you must have infinitifed
they must have infinitifed	I must have been infinitifing
you must have been infinitifing
he must have been infinitifing
we must have been infinitifing
you must have been infinitifing
they must have been infinitifing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't infinitif
you mustn't infinitif
he mustn't infinitif
we mustn't infinitif
you mustn't infinitif
they mustn't infinitif 	I mustn't be infinitifing
you mustn't be infinitifing
he mustn't be infinitifing
we mustn't be infinitifing
you mustn't be infinitifing
they mustn't be infinitifing	I mustn't have infinitifed
you mustn't have infinitifed
he mustn't have infinitifed
we mustn't have infinitifed
you mustn't have infinitifed
they mustn't have infinitifed	I mustn't have been infinitifing
you mustn't have been infinitifing
he mustn't have been infinitifing
we mustn't have been infinitifing
you mustn't have been infinitifing
they mustn't have been infinitifing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I infinitif?
must you infinitif?
must he infinitif?
must we infinitif?
must you infinitif?
must they infinitif? 	must I be infinitifing?
must you be infinitifing?
must he be infinitifing?
must we be infinitifing?
must you be infinitifing?
must they be infinitifing? 	must I have infinitifed?
must you have infinitifed?
must he have infinitifed?
must we have infinitifed?
must you have infinitifed?
must they have infinitifed? 	must I have been infinitifing?
must you have been infinitifing?
must he have been infinitifing?
must we have been infinitifing?
must you have been infinitifing?
must they have been infinitifing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I infinitif?
mustn't you infinitif?
mustn't he infinitif?
mustn't we infinitif?
mustn't you infinitif?
mustn't they infinitif? 	mustn't I be infinitifing?
mustn't you be infinitifing?
mustn't he be infinitifing?
mustn't we be infinitifing?
mustn't you be infinitifing?
mustn't they be infinitifing? 	mustn't I have infinitifed?
mustn't you have infinitifed?
mustn't he have infinitifed?
mustn't we have infinitifed?
mustn't you have infinitifed?
mustn't they have infinitifed? 	mustn't I have been infinitifing?
mustn't you have been infinitifing?
mustn't he have been infinitifing?
mustn't we have been infinitifing?
mustn't you have been infinitifing?
mustn't they have been infinitifing?