I must reface you must reface she must reface we must reface you must reface they must reface
Forma con V-ing
I must be refacing you must be refacing she must be refacing we must be refacing you must be refacing they must be refacing
Perfecto
I must have refaced you must have refaced she must have refaced we must have refaced you must have refaced they must have refaced
Perfecto con V-ing
I must have been refacing you must have been refacing she must have been refacing we must have been refacing you must have been refacing they must have been refacing
Negación
Forma simple
I must not reface you must not reface she must not reface we must not reface you must not reface they must not reface
Forma con V-ing
I must not be refacing you must not be refacing she must not be refacing we must not be refacing you must not be refacing they must not be refacing
Perfecto
I must not have refaced you must not have refaced she must not have refaced we must not have refaced you must not have refaced they must not have refaced
Perfecto con V-ing
I must not have been refacing you must not have been refacing she must not have been refacing we must not have been refacing you must not have been refacing they must not have been refacing
Forma interrogativa
Forma simple
must I reface? must you reface? must she reface? must we reface? must you reface? must they reface?
Forma con V-ing
must I be refacing? must you be refacing? must she be refacing? must we be refacing? must you be refacing? must they be refacing?
Perfecto
must I have refaced? must you have refaced? must she have refaced? must we have refaced? must you have refaced? must they have refaced?
Perfecto con V-ing
must I have been refacing? must you have been refacing? must she have been refacing? must we have been refacing? must you have been refacing? must they have been refacing?
Forma interro-negativa
Forma simple
must I not reface? must you not reface? must she not reface? must we not reface? must you not reface? must they not reface?
Forma con V-ing
must I not be refacing? must you not be refacing? must she not be refacing? must we not be refacing? must you not be refacing? must they not be refacing?
Perfecto
must I not have refaced? must you not have refaced? must she not have refaced? must we not have refaced? must you not have refaced? must they not have refaced?
Perfecto con V-ing
must I not have been refacing? must you not have been refacing? must she not have been refacing? must we not have been refacing? must you not have been refacing? must they not have been refacing?