English verb conjugation
MUST HORRIFY

Regular verb: horrify - horrified - horrified

Affirmation

Simple form	V-ing form
I must horrify you must horrify he must horrify we must horrify you must horrify they must horrify	I must be horrifying you must be horrifying he must be horrifying we must be horrifying you must be horrifying they must be horrifying
Perfect	V-ing perfect
I must have horrified you must have horrified he must have horrified we must have horrified you must have horrified they must have horrified	I must have been horrifying you must have been horrifying he must have been horrifying we must have been horrifying you must have been horrifying they must have been horrifying

Negation

Simple form	V-ing form
I mustn't horrify you mustn't horrify he mustn't horrify we mustn't horrify you mustn't horrify they mustn't horrify	I mustn't be horrifying you mustn't be horrifying he mustn't be horrifying we mustn't be horrifying you mustn't be horrifying they mustn't be horrifying
Perfect	V-ing perfect
I mustn't have horrified you mustn't have horrified he mustn't have horrified we mustn't have horrified you mustn't have horrified they mustn't have horrified	I mustn't have been horrifying you mustn't have been horrifying he mustn't have been horrifying we mustn't have been horrifying you mustn't have been horrifying they mustn't have been horrifying

Interrogative form

Simple form	V-ing form
must I horrify? must you horrify? must he horrify? must we horrify? must you horrify? must they horrify?	must I be horrifying? must you be horrifying? must he be horrifying? must we be horrifying? must you be horrifying? must they be horrifying?
Perfect	V-ing perfect
must I have horrified? must you have horrified? must he have horrified? must we have horrified? must you have horrified? must they have horrified?	must I have been horrifying? must you have been horrifying? must he have been horrifying? must we have been horrifying? must you have been horrifying? must they have been horrifying?

Interro-negative form

Simple form	V-ing form
mustn't I horrify? mustn't you horrify? mustn't he horrify? mustn't we horrify? mustn't you horrify? mustn't they horrify?	mustn't I be horrifying? mustn't you be horrifying? mustn't he be horrifying? mustn't we be horrifying? mustn't you be horrifying? mustn't they be horrifying?
Perfect	V-ing perfect
mustn't I have horrified? mustn't you have horrified? mustn't he have horrified? mustn't we have horrified? mustn't you have horrified? mustn't they have horrified?	mustn't I have been horrifying? mustn't you have been horrifying? mustn't he have been horrifying? mustn't we have been horrifying? mustn't you have been horrifying? mustn't they have been horrifying?