I must proscribe you must proscribe she must proscribe we must proscribe you must proscribe they must proscribe
V-ing form
I must be proscribing you must be proscribing she must be proscribing we must be proscribing you must be proscribing they must be proscribing
Perfect
I must have proscribed you must have proscribed she must have proscribed we must have proscribed you must have proscribed they must have proscribed
V-ing perfect
I must have been proscribing you must have been proscribing she must have been proscribing we must have been proscribing you must have been proscribing they must have been proscribing
Negation
Simple form
I must not proscribe you must not proscribe she must not proscribe we must not proscribe you must not proscribe they must not proscribe
V-ing form
I must not be proscribing you must not be proscribing she must not be proscribing we must not be proscribing you must not be proscribing they must not be proscribing
Perfect
I must not have proscribed you must not have proscribed she must not have proscribed we must not have proscribed you must not have proscribed they must not have proscribed
V-ing perfect
I must not have been proscribing you must not have been proscribing she must not have been proscribing we must not have been proscribing you must not have been proscribing they must not have been proscribing
Interrogative form
Simple form
must I proscribe? must you proscribe? must she proscribe? must we proscribe? must you proscribe? must they proscribe?
V-ing form
must I be proscribing? must you be proscribing? must she be proscribing? must we be proscribing? must you be proscribing? must they be proscribing?
Perfect
must I have proscribed? must you have proscribed? must she have proscribed? must we have proscribed? must you have proscribed? must they have proscribed?
V-ing perfect
must I have been proscribing? must you have been proscribing? must she have been proscribing? must we have been proscribing? must you have been proscribing? must they have been proscribing?
Interro-negative form
Simple form
must I not proscribe? must you not proscribe? must she not proscribe? must we not proscribe? must you not proscribe? must they not proscribe?
V-ing form
must I not be proscribing? must you not be proscribing? must she not be proscribing? must we not be proscribing? must you not be proscribing? must they not be proscribing?
Perfect
must I not have proscribed? must you not have proscribed? must she not have proscribed? must we not have proscribed? must you not have proscribed? must they not have proscribed?
V-ing perfect
must I not have been proscribing? must you not have been proscribing? must she not have been proscribing? must we not have been proscribing? must you not have been proscribing? must they not have been proscribing?