English verb conjugation
MUST PROSCRIBE

Regular verb: proscribe - proscribed - proscribed

Affirmation

Simple form	V-ing form
I must proscribe you must proscribe he must proscribe we must proscribe you must proscribe they must proscribe	I must be proscribing you must be proscribing he must be proscribing we must be proscribing you must be proscribing they must be proscribing
Perfect	V-ing perfect
I must have proscribed you must have proscribed he must have proscribed we must have proscribed you must have proscribed they must have proscribed	I must have been proscribing you must have been proscribing he must have been proscribing we must have been proscribing you must have been proscribing they must have been proscribing

Negation

Simple form	V-ing form
I mustn't proscribe you mustn't proscribe he mustn't proscribe we mustn't proscribe you mustn't proscribe they mustn't proscribe	I mustn't be proscribing you mustn't be proscribing he mustn't be proscribing we mustn't be proscribing you mustn't be proscribing they mustn't be proscribing
Perfect	V-ing perfect
I mustn't have proscribed you mustn't have proscribed he mustn't have proscribed we mustn't have proscribed you mustn't have proscribed they mustn't have proscribed	I mustn't have been proscribing you mustn't have been proscribing he mustn't have been proscribing we mustn't have been proscribing you mustn't have been proscribing they mustn't have been proscribing

Interrogative form

Simple form	V-ing form
must I proscribe? must you proscribe? must he proscribe? must we proscribe? must you proscribe? must they proscribe?	must I be proscribing? must you be proscribing? must he be proscribing? must we be proscribing? must you be proscribing? must they be proscribing?
Perfect	V-ing perfect
must I have proscribed? must you have proscribed? must he have proscribed? must we have proscribed? must you have proscribed? must they have proscribed?	must I have been proscribing? must you have been proscribing? must he have been proscribing? must we have been proscribing? must you have been proscribing? must they have been proscribing?

Interro-negative form

Simple form	V-ing form
mustn't I proscribe? mustn't you proscribe? mustn't he proscribe? mustn't we proscribe? mustn't you proscribe? mustn't they proscribe?	mustn't I be proscribing? mustn't you be proscribing? mustn't he be proscribing? mustn't we be proscribing? mustn't you be proscribing? mustn't they be proscribing?
Perfect	V-ing perfect
mustn't I have proscribed? mustn't you have proscribed? mustn't he have proscribed? mustn't we have proscribed? mustn't you have proscribed? mustn't they have proscribed?	mustn't I have been proscribing? mustn't you have been proscribing? mustn't he have been proscribing? mustn't we have been proscribing? mustn't you have been proscribing? mustn't they have been proscribing?