English verb conjugation
MUST BENUMB

Regular verb: benumb - benumbed - benumbed

Affirmation

Simple form	V-ing form
I must benumb you must benumb he must benumb we must benumb you must benumb they must benumb	I must be benumbing you must be benumbing he must be benumbing we must be benumbing you must be benumbing they must be benumbing
Perfect	V-ing perfect
I must have benumbed you must have benumbed he must have benumbed we must have benumbed you must have benumbed they must have benumbed	I must have been benumbing you must have been benumbing he must have been benumbing we must have been benumbing you must have been benumbing they must have been benumbing

Negation

Simple form	V-ing form
I mustn't benumb you mustn't benumb he mustn't benumb we mustn't benumb you mustn't benumb they mustn't benumb	I mustn't be benumbing you mustn't be benumbing he mustn't be benumbing we mustn't be benumbing you mustn't be benumbing they mustn't be benumbing
Perfect	V-ing perfect
I mustn't have benumbed you mustn't have benumbed he mustn't have benumbed we mustn't have benumbed you mustn't have benumbed they mustn't have benumbed	I mustn't have been benumbing you mustn't have been benumbing he mustn't have been benumbing we mustn't have been benumbing you mustn't have been benumbing they mustn't have been benumbing

Interrogative form

Simple form	V-ing form
must I benumb? must you benumb? must he benumb? must we benumb? must you benumb? must they benumb?	must I be benumbing? must you be benumbing? must he be benumbing? must we be benumbing? must you be benumbing? must they be benumbing?
Perfect	V-ing perfect
must I have benumbed? must you have benumbed? must he have benumbed? must we have benumbed? must you have benumbed? must they have benumbed?	must I have been benumbing? must you have been benumbing? must he have been benumbing? must we have been benumbing? must you have been benumbing? must they have been benumbing?

Interro-negative form

Simple form	V-ing form
mustn't I benumb? mustn't you benumb? mustn't he benumb? mustn't we benumb? mustn't you benumb? mustn't they benumb?	mustn't I be benumbing? mustn't you be benumbing? mustn't he be benumbing? mustn't we be benumbing? mustn't you be benumbing? mustn't they be benumbing?
Perfect	V-ing perfect
mustn't I have benumbed? mustn't you have benumbed? mustn't he have benumbed? mustn't we have benumbed? mustn't you have benumbed? mustn't they have benumbed?	mustn't I have been benumbing? mustn't you have been benumbing? mustn't he have been benumbing? mustn't we have been benumbing? mustn't you have been benumbing? mustn't they have been benumbing?