must insult
Regular verb: insult - insulted- insulted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must insult
you must insult
he must insult
we must insult
you must insult
they must insult 	I must be insulting
you must be insulting
he must be insulting
we must be insulting
you must be insulting
they must be insulting	I must have insulted
you must have insulted
he must have insulted
we must have insulted
you must have insulted
they must have insulted	I must have been insulting
you must have been insulting
he must have been insulting
we must have been insulting
you must have been insulting
they must have been insulting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't insult
you mustn't insult
he mustn't insult
we mustn't insult
you mustn't insult
they mustn't insult 	I mustn't be insulting
you mustn't be insulting
he mustn't be insulting
we mustn't be insulting
you mustn't be insulting
they mustn't be insulting	I mustn't have insulted
you mustn't have insulted
he mustn't have insulted
we mustn't have insulted
you mustn't have insulted
they mustn't have insulted	I mustn't have been insulting
you mustn't have been insulting
he mustn't have been insulting
we mustn't have been insulting
you mustn't have been insulting
they mustn't have been insulting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I insult?
must you insult?
must he insult?
must we insult?
must you insult?
must they insult? 	must I be insulting?
must you be insulting?
must he be insulting?
must we be insulting?
must you be insulting?
must they be insulting? 	must I have insulted?
must you have insulted?
must he have insulted?
must we have insulted?
must you have insulted?
must they have insulted? 	must I have been insulting?
must you have been insulting?
must he have been insulting?
must we have been insulting?
must you have been insulting?
must they have been insulting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I insult?
mustn't you insult?
mustn't he insult?
mustn't we insult?
mustn't you insult?
mustn't they insult? 	mustn't I be insulting?
mustn't you be insulting?
mustn't he be insulting?
mustn't we be insulting?
mustn't you be insulting?
mustn't they be insulting? 	mustn't I have insulted?
mustn't you have insulted?
mustn't he have insulted?
mustn't we have insulted?
mustn't you have insulted?
mustn't they have insulted? 	mustn't I have been insulting?
mustn't you have been insulting?
mustn't he have been insulting?
mustn't we have been insulting?
mustn't you have been insulting?
mustn't they have been insulting?