must disperse
Regular verb: disperse - dispersed- dispersed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must disperse
you must disperse
she must disperse
we must disperse
you must disperse
they must disperse 	I must be dispersing
you must be dispersing
she must be dispersing
we must be dispersing
you must be dispersing
they must be dispersing	I must have dispersed
you must have dispersed
she must have dispersed
we must have dispersed
you must have dispersed
they must have dispersed	I must have been dispersing
you must have been dispersing
she must have been dispersing
we must have been dispersing
you must have been dispersing
they must have been dispersing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't disperse
you mustn't disperse
she mustn't disperse
we mustn't disperse
you mustn't disperse
they mustn't disperse 	I mustn't be dispersing
you mustn't be dispersing
she mustn't be dispersing
we mustn't be dispersing
you mustn't be dispersing
they mustn't be dispersing	I mustn't have dispersed
you mustn't have dispersed
she mustn't have dispersed
we mustn't have dispersed
you mustn't have dispersed
they mustn't have dispersed	I mustn't have been dispersing
you mustn't have been dispersing
she mustn't have been dispersing
we mustn't have been dispersing
you mustn't have been dispersing
they mustn't have been dispersing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I disperse?
must you disperse?
must she disperse?
must we disperse?
must you disperse?
must they disperse? 	must I be dispersing?
must you be dispersing?
must she be dispersing?
must we be dispersing?
must you be dispersing?
must they be dispersing? 	must I have dispersed?
must you have dispersed?
must she have dispersed?
must we have dispersed?
must you have dispersed?
must they have dispersed? 	must I have been dispersing?
must you have been dispersing?
must she have been dispersing?
must we have been dispersing?
must you have been dispersing?
must they have been dispersing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I disperse?
mustn't you disperse?
mustn't she disperse?
mustn't we disperse?
mustn't you disperse?
mustn't they disperse? 	mustn't I be dispersing?
mustn't you be dispersing?
mustn't she be dispersing?
mustn't we be dispersing?
mustn't you be dispersing?
mustn't they be dispersing? 	mustn't I have dispersed?
mustn't you have dispersed?
mustn't she have dispersed?
mustn't we have dispersed?
mustn't you have dispersed?
mustn't they have dispersed? 	mustn't I have been dispersing?
mustn't you have been dispersing?
mustn't she have been dispersing?
mustn't we have been dispersing?
mustn't you have been dispersing?
mustn't they have been dispersing?