must numb
Regular verb: numb - numbed- numbed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must numb
you must numb
he must numb
we must numb
you must numb
they must numb 	I must be numbing
you must be numbing
he must be numbing
we must be numbing
you must be numbing
they must be numbing	I must have numbed
you must have numbed
he must have numbed
we must have numbed
you must have numbed
they must have numbed	I must have been numbing
you must have been numbing
he must have been numbing
we must have been numbing
you must have been numbing
they must have been numbing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't numb
you mustn't numb
he mustn't numb
we mustn't numb
you mustn't numb
they mustn't numb 	I mustn't be numbing
you mustn't be numbing
he mustn't be numbing
we mustn't be numbing
you mustn't be numbing
they mustn't be numbing	I mustn't have numbed
you mustn't have numbed
he mustn't have numbed
we mustn't have numbed
you mustn't have numbed
they mustn't have numbed	I mustn't have been numbing
you mustn't have been numbing
he mustn't have been numbing
we mustn't have been numbing
you mustn't have been numbing
they mustn't have been numbing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I numb?
must you numb?
must he numb?
must we numb?
must you numb?
must they numb? 	must I be numbing?
must you be numbing?
must he be numbing?
must we be numbing?
must you be numbing?
must they be numbing? 	must I have numbed?
must you have numbed?
must he have numbed?
must we have numbed?
must you have numbed?
must they have numbed? 	must I have been numbing?
must you have been numbing?
must he have been numbing?
must we have been numbing?
must you have been numbing?
must they have been numbing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I numb?
mustn't you numb?
mustn't he numb?
mustn't we numb?
mustn't you numb?
mustn't they numb? 	mustn't I be numbing?
mustn't you be numbing?
mustn't he be numbing?
mustn't we be numbing?
mustn't you be numbing?
mustn't they be numbing? 	mustn't I have numbed?
mustn't you have numbed?
mustn't he have numbed?
mustn't we have numbed?
mustn't you have numbed?
mustn't they have numbed? 	mustn't I have been numbing?
mustn't you have been numbing?
mustn't he have been numbing?
mustn't we have been numbing?
mustn't you have been numbing?
mustn't they have been numbing?