English verb conjugation
MUST PRESCRIBE

Regular verb: prescribe - prescribed - prescribed

Affirmation

Simple form	V-ing form
I must prescribe you must prescribe he must prescribe we must prescribe you must prescribe they must prescribe	I must be prescribing you must be prescribing he must be prescribing we must be prescribing you must be prescribing they must be prescribing
Perfect	V-ing perfect
I must have prescribed you must have prescribed he must have prescribed we must have prescribed you must have prescribed they must have prescribed	I must have been prescribing you must have been prescribing he must have been prescribing we must have been prescribing you must have been prescribing they must have been prescribing

Negation

Simple form	V-ing form
I must not prescribe you must not prescribe he must not prescribe we must not prescribe you must not prescribe they must not prescribe	I must not be prescribing you must not be prescribing he must not be prescribing we must not be prescribing you must not be prescribing they must not be prescribing
Perfect	V-ing perfect
I must not have prescribed you must not have prescribed he must not have prescribed we must not have prescribed you must not have prescribed they must not have prescribed	I must not have been prescribing you must not have been prescribing he must not have been prescribing we must not have been prescribing you must not have been prescribing they must not have been prescribing

Interrogative form

Simple form	V-ing form
must I prescribe? must you prescribe? must he prescribe? must we prescribe? must you prescribe? must they prescribe?	must I be prescribing? must you be prescribing? must he be prescribing? must we be prescribing? must you be prescribing? must they be prescribing?
Perfect	V-ing perfect
must I have prescribed? must you have prescribed? must he have prescribed? must we have prescribed? must you have prescribed? must they have prescribed?	must I have been prescribing? must you have been prescribing? must he have been prescribing? must we have been prescribing? must you have been prescribing? must they have been prescribing?

Interro-negative form

Simple form	V-ing form
must I not prescribe? must you not prescribe? must he not prescribe? must we not prescribe? must you not prescribe? must they not prescribe?	must I not be prescribing? must you not be prescribing? must he not be prescribing? must we not be prescribing? must you not be prescribing? must they not be prescribing?
Perfect	V-ing perfect
must I not have prescribed? must you not have prescribed? must he not have prescribed? must we not have prescribed? must you not have prescribed? must they not have prescribed?	must I not have been prescribing? must you not have been prescribing? must he not have been prescribing? must we not have been prescribing? must you not have been prescribing? must they not have been prescribing?