must after
Regular verb: after - aftered- aftered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must after
you must after
he must after
we must after
you must after
they must after 	I must be aftering
you must be aftering
he must be aftering
we must be aftering
you must be aftering
they must be aftering	I must have aftered
you must have aftered
he must have aftered
we must have aftered
you must have aftered
they must have aftered	I must have been aftering
you must have been aftering
he must have been aftering
we must have been aftering
you must have been aftering
they must have been aftering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't after
you mustn't after
he mustn't after
we mustn't after
you mustn't after
they mustn't after 	I mustn't be aftering
you mustn't be aftering
he mustn't be aftering
we mustn't be aftering
you mustn't be aftering
they mustn't be aftering	I mustn't have aftered
you mustn't have aftered
he mustn't have aftered
we mustn't have aftered
you mustn't have aftered
they mustn't have aftered	I mustn't have been aftering
you mustn't have been aftering
he mustn't have been aftering
we mustn't have been aftering
you mustn't have been aftering
they mustn't have been aftering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I after?
must you after?
must he after?
must we after?
must you after?
must they after? 	must I be aftering?
must you be aftering?
must he be aftering?
must we be aftering?
must you be aftering?
must they be aftering? 	must I have aftered?
must you have aftered?
must he have aftered?
must we have aftered?
must you have aftered?
must they have aftered? 	must I have been aftering?
must you have been aftering?
must he have been aftering?
must we have been aftering?
must you have been aftering?
must they have been aftering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I after?
mustn't you after?
mustn't he after?
mustn't we after?
mustn't you after?
mustn't they after? 	mustn't I be aftering?
mustn't you be aftering?
mustn't he be aftering?
mustn't we be aftering?
mustn't you be aftering?
mustn't they be aftering? 	mustn't I have aftered?
mustn't you have aftered?
mustn't he have aftered?
mustn't we have aftered?
mustn't you have aftered?
mustn't they have aftered? 	mustn't I have been aftering?
mustn't you have been aftering?
mustn't he have been aftering?
mustn't we have been aftering?
mustn't you have been aftering?
mustn't they have been aftering?