must rejoice
Regular verb: rejoice - rejoiced- rejoiced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must rejoice
you must rejoice
he must rejoice
we must rejoice
you must rejoice
they must rejoice 	I must be rejoicing
you must be rejoicing
he must be rejoicing
we must be rejoicing
you must be rejoicing
they must be rejoicing	I must have rejoiced
you must have rejoiced
he must have rejoiced
we must have rejoiced
you must have rejoiced
they must have rejoiced	I must have been rejoicing
you must have been rejoicing
he must have been rejoicing
we must have been rejoicing
you must have been rejoicing
they must have been rejoicing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't rejoice
you mustn't rejoice
he mustn't rejoice
we mustn't rejoice
you mustn't rejoice
they mustn't rejoice 	I mustn't be rejoicing
you mustn't be rejoicing
he mustn't be rejoicing
we mustn't be rejoicing
you mustn't be rejoicing
they mustn't be rejoicing	I mustn't have rejoiced
you mustn't have rejoiced
he mustn't have rejoiced
we mustn't have rejoiced
you mustn't have rejoiced
they mustn't have rejoiced	I mustn't have been rejoicing
you mustn't have been rejoicing
he mustn't have been rejoicing
we mustn't have been rejoicing
you mustn't have been rejoicing
they mustn't have been rejoicing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I rejoice?
must you rejoice?
must he rejoice?
must we rejoice?
must you rejoice?
must they rejoice? 	must I be rejoicing?
must you be rejoicing?
must he be rejoicing?
must we be rejoicing?
must you be rejoicing?
must they be rejoicing? 	must I have rejoiced?
must you have rejoiced?
must he have rejoiced?
must we have rejoiced?
must you have rejoiced?
must they have rejoiced? 	must I have been rejoicing?
must you have been rejoicing?
must he have been rejoicing?
must we have been rejoicing?
must you have been rejoicing?
must they have been rejoicing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I rejoice?
mustn't you rejoice?
mustn't he rejoice?
mustn't we rejoice?
mustn't you rejoice?
mustn't they rejoice? 	mustn't I be rejoicing?
mustn't you be rejoicing?
mustn't he be rejoicing?
mustn't we be rejoicing?
mustn't you be rejoicing?
mustn't they be rejoicing? 	mustn't I have rejoiced?
mustn't you have rejoiced?
mustn't he have rejoiced?
mustn't we have rejoiced?
mustn't you have rejoiced?
mustn't they have rejoiced? 	mustn't I have been rejoicing?
mustn't you have been rejoicing?
mustn't he have been rejoicing?
mustn't we have been rejoicing?
mustn't you have been rejoicing?
mustn't they have been rejoicing?