I must revise you must revise she must revise we must revise you must revise they must revise
Forma con V-ing
I must be revising you must be revising she must be revising we must be revising you must be revising they must be revising
Perfecto
I must have revised you must have revised she must have revised we must have revised you must have revised they must have revised
Perfecto con V-ing
I must have been revising you must have been revising she must have been revising we must have been revising you must have been revising they must have been revising
Negación
Forma simple
I must not revise you must not revise she must not revise we must not revise you must not revise they must not revise
Forma con V-ing
I must not be revising you must not be revising she must not be revising we must not be revising you must not be revising they must not be revising
Perfecto
I must not have revised you must not have revised she must not have revised we must not have revised you must not have revised they must not have revised
Perfecto con V-ing
I must not have been revising you must not have been revising she must not have been revising we must not have been revising you must not have been revising they must not have been revising
Forma interrogativa
Forma simple
must I revise? must you revise? must she revise? must we revise? must you revise? must they revise?
Forma con V-ing
must I be revising? must you be revising? must she be revising? must we be revising? must you be revising? must they be revising?
Perfecto
must I have revised? must you have revised? must she have revised? must we have revised? must you have revised? must they have revised?
Perfecto con V-ing
must I have been revising? must you have been revising? must she have been revising? must we have been revising? must you have been revising? must they have been revising?
Forma interro-negativa
Forma simple
must I not revise? must you not revise? must she not revise? must we not revise? must you not revise? must they not revise?
Forma con V-ing
must I not be revising? must you not be revising? must she not be revising? must we not be revising? must you not be revising? must they not be revising?
Perfecto
must I not have revised? must you not have revised? must she not have revised? must we not have revised? must you not have revised? must they not have revised?
Perfecto con V-ing
must I not have been revising? must you not have been revising? must she not have been revising? must we not have been revising? must you not have been revising? must they not have been revising?