English verb conjugation
MUST PREFURNISH

Regular verb: prefurnish - prefurnished - prefurnished

Affirmation

Simple form	V-ing form
I must prefurnish you must prefurnish he must prefurnish we must prefurnish you must prefurnish they must prefurnish	I must be prefurnishing you must be prefurnishing he must be prefurnishing we must be prefurnishing you must be prefurnishing they must be prefurnishing
Perfect	V-ing perfect
I must have prefurnished you must have prefurnished he must have prefurnished we must have prefurnished you must have prefurnished they must have prefurnished	I must have been prefurnishing you must have been prefurnishing he must have been prefurnishing we must have been prefurnishing you must have been prefurnishing they must have been prefurnishing

Negation

Simple form	V-ing form
I must not prefurnish you must not prefurnish he must not prefurnish we must not prefurnish you must not prefurnish they must not prefurnish	I must not be prefurnishing you must not be prefurnishing he must not be prefurnishing we must not be prefurnishing you must not be prefurnishing they must not be prefurnishing
Perfect	V-ing perfect
I must not have prefurnished you must not have prefurnished he must not have prefurnished we must not have prefurnished you must not have prefurnished they must not have prefurnished	I must not have been prefurnishing you must not have been prefurnishing he must not have been prefurnishing we must not have been prefurnishing you must not have been prefurnishing they must not have been prefurnishing

Interrogative form

Simple form	V-ing form
must I prefurnish? must you prefurnish? must he prefurnish? must we prefurnish? must you prefurnish? must they prefurnish?	must I be prefurnishing? must you be prefurnishing? must he be prefurnishing? must we be prefurnishing? must you be prefurnishing? must they be prefurnishing?
Perfect	V-ing perfect
must I have prefurnished? must you have prefurnished? must he have prefurnished? must we have prefurnished? must you have prefurnished? must they have prefurnished?	must I have been prefurnishing? must you have been prefurnishing? must he have been prefurnishing? must we have been prefurnishing? must you have been prefurnishing? must they have been prefurnishing?

Interro-negative form

Simple form	V-ing form
must I not prefurnish? must you not prefurnish? must he not prefurnish? must we not prefurnish? must you not prefurnish? must they not prefurnish?	must I not be prefurnishing? must you not be prefurnishing? must he not be prefurnishing? must we not be prefurnishing? must you not be prefurnishing? must they not be prefurnishing?
Perfect	V-ing perfect
must I not have prefurnished? must you not have prefurnished? must he not have prefurnished? must we not have prefurnished? must you not have prefurnished? must they not have prefurnished?	must I not have been prefurnishing? must you not have been prefurnishing? must he not have been prefurnishing? must we not have been prefurnishing? must you not have been prefurnishing? must they not have been prefurnishing?