must enlist
Regular verb: enlist - enlisted- enlisted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must enlist
you must enlist
he must enlist
we must enlist
you must enlist
they must enlist 	I must be enlisting
you must be enlisting
he must be enlisting
we must be enlisting
you must be enlisting
they must be enlisting	I must have enlisted
you must have enlisted
he must have enlisted
we must have enlisted
you must have enlisted
they must have enlisted	I must have been enlisting
you must have been enlisting
he must have been enlisting
we must have been enlisting
you must have been enlisting
they must have been enlisting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't enlist
you mustn't enlist
he mustn't enlist
we mustn't enlist
you mustn't enlist
they mustn't enlist 	I mustn't be enlisting
you mustn't be enlisting
he mustn't be enlisting
we mustn't be enlisting
you mustn't be enlisting
they mustn't be enlisting	I mustn't have enlisted
you mustn't have enlisted
he mustn't have enlisted
we mustn't have enlisted
you mustn't have enlisted
they mustn't have enlisted	I mustn't have been enlisting
you mustn't have been enlisting
he mustn't have been enlisting
we mustn't have been enlisting
you mustn't have been enlisting
they mustn't have been enlisting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I enlist?
must you enlist?
must he enlist?
must we enlist?
must you enlist?
must they enlist? 	must I be enlisting?
must you be enlisting?
must he be enlisting?
must we be enlisting?
must you be enlisting?
must they be enlisting? 	must I have enlisted?
must you have enlisted?
must he have enlisted?
must we have enlisted?
must you have enlisted?
must they have enlisted? 	must I have been enlisting?
must you have been enlisting?
must he have been enlisting?
must we have been enlisting?
must you have been enlisting?
must they have been enlisting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I enlist?
mustn't you enlist?
mustn't he enlist?
mustn't we enlist?
mustn't you enlist?
mustn't they enlist? 	mustn't I be enlisting?
mustn't you be enlisting?
mustn't he be enlisting?
mustn't we be enlisting?
mustn't you be enlisting?
mustn't they be enlisting? 	mustn't I have enlisted?
mustn't you have enlisted?
mustn't he have enlisted?
mustn't we have enlisted?
mustn't you have enlisted?
mustn't they have enlisted? 	mustn't I have been enlisting?
mustn't you have been enlisting?
mustn't he have been enlisting?
mustn't we have been enlisting?
mustn't you have been enlisting?
mustn't they have been enlisting?