must enjoin
Regular verb: enjoin - enjoined- enjoined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must enjoin
you must enjoin
he must enjoin
we must enjoin
you must enjoin
they must enjoin 	I must be enjoining
you must be enjoining
he must be enjoining
we must be enjoining
you must be enjoining
they must be enjoining	I must have enjoined
you must have enjoined
he must have enjoined
we must have enjoined
you must have enjoined
they must have enjoined	I must have been enjoining
you must have been enjoining
he must have been enjoining
we must have been enjoining
you must have been enjoining
they must have been enjoining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't enjoin
you mustn't enjoin
he mustn't enjoin
we mustn't enjoin
you mustn't enjoin
they mustn't enjoin 	I mustn't be enjoining
you mustn't be enjoining
he mustn't be enjoining
we mustn't be enjoining
you mustn't be enjoining
they mustn't be enjoining	I mustn't have enjoined
you mustn't have enjoined
he mustn't have enjoined
we mustn't have enjoined
you mustn't have enjoined
they mustn't have enjoined	I mustn't have been enjoining
you mustn't have been enjoining
he mustn't have been enjoining
we mustn't have been enjoining
you mustn't have been enjoining
they mustn't have been enjoining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I enjoin?
must you enjoin?
must he enjoin?
must we enjoin?
must you enjoin?
must they enjoin? 	must I be enjoining?
must you be enjoining?
must he be enjoining?
must we be enjoining?
must you be enjoining?
must they be enjoining? 	must I have enjoined?
must you have enjoined?
must he have enjoined?
must we have enjoined?
must you have enjoined?
must they have enjoined? 	must I have been enjoining?
must you have been enjoining?
must he have been enjoining?
must we have been enjoining?
must you have been enjoining?
must they have been enjoining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I enjoin?
mustn't you enjoin?
mustn't he enjoin?
mustn't we enjoin?
mustn't you enjoin?
mustn't they enjoin? 	mustn't I be enjoining?
mustn't you be enjoining?
mustn't he be enjoining?
mustn't we be enjoining?
mustn't you be enjoining?
mustn't they be enjoining? 	mustn't I have enjoined?
mustn't you have enjoined?
mustn't he have enjoined?
mustn't we have enjoined?
mustn't you have enjoined?
mustn't they have enjoined? 	mustn't I have been enjoining?
mustn't you have been enjoining?
mustn't he have been enjoining?
mustn't we have been enjoining?
mustn't you have been enjoining?
mustn't they have been enjoining?