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