English verb conjugation
MUST REFURBISH

Regular verb: refurbish - refurbished - refurbished

Affirmation

Simple form	V-ing form
I must refurbish you must refurbish she must refurbish we must refurbish you must refurbish they must refurbish	I must be refurbishing you must be refurbishing she must be refurbishing we must be refurbishing you must be refurbishing they must be refurbishing
Perfect	V-ing perfect
I must have refurbished you must have refurbished she must have refurbished we must have refurbished you must have refurbished they must have refurbished	I must have been refurbishing you must have been refurbishing she must have been refurbishing we must have been refurbishing you must have been refurbishing they must have been refurbishing

Negation

Simple form	V-ing form
I must not refurbish you must not refurbish she must not refurbish we must not refurbish you must not refurbish they must not refurbish	I must not be refurbishing you must not be refurbishing she must not be refurbishing we must not be refurbishing you must not be refurbishing they must not be refurbishing
Perfect	V-ing perfect
I must not have refurbished you must not have refurbished she must not have refurbished we must not have refurbished you must not have refurbished they must not have refurbished	I must not have been refurbishing you must not have been refurbishing she must not have been refurbishing we must not have been refurbishing you must not have been refurbishing they must not have been refurbishing

Interrogative form

Simple form	V-ing form
must I refurbish? must you refurbish? must she refurbish? must we refurbish? must you refurbish? must they refurbish?	must I be refurbishing? must you be refurbishing? must she be refurbishing? must we be refurbishing? must you be refurbishing? must they be refurbishing?
Perfect	V-ing perfect
must I have refurbished? must you have refurbished? must she have refurbished? must we have refurbished? must you have refurbished? must they have refurbished?	must I have been refurbishing? must you have been refurbishing? must she have been refurbishing? must we have been refurbishing? must you have been refurbishing? must they have been refurbishing?

Interro-negative form

Simple form	V-ing form
must I not refurbish? must you not refurbish? must she not refurbish? must we not refurbish? must you not refurbish? must they not refurbish?	must I not be refurbishing? must you not be refurbishing? must she not be refurbishing? must we not be refurbishing? must you not be refurbishing? must they not be refurbishing?
Perfect	V-ing perfect
must I not have refurbished? must you not have refurbished? must she not have refurbished? must we not have refurbished? must you not have refurbished? must they not have refurbished?	must I not have been refurbishing? must you not have been refurbishing? must she not have been refurbishing? must we not have been refurbishing? must you not have been refurbishing? must they not have been refurbishing?