I must fray you must fray she must fray we must fray you must fray they must fray
Forma con V-ing
I must be fraying you must be fraying she must be fraying we must be fraying you must be fraying they must be fraying
Perfecto
I must have frayed you must have frayed she must have frayed we must have frayed you must have frayed they must have frayed
Perfecto con V-ing
I must have been fraying you must have been fraying she must have been fraying we must have been fraying you must have been fraying they must have been fraying
Negación
Forma simple
I must not fray you must not fray she must not fray we must not fray you must not fray they must not fray
Forma con V-ing
I must not be fraying you must not be fraying she must not be fraying we must not be fraying you must not be fraying they must not be fraying
Perfecto
I must not have frayed you must not have frayed she must not have frayed we must not have frayed you must not have frayed they must not have frayed
Perfecto con V-ing
I must not have been fraying you must not have been fraying she must not have been fraying we must not have been fraying you must not have been fraying they must not have been fraying
Forma interrogativa
Forma simple
must I fray? must you fray? must she fray? must we fray? must you fray? must they fray?
Forma con V-ing
must I be fraying? must you be fraying? must she be fraying? must we be fraying? must you be fraying? must they be fraying?
Perfecto
must I have frayed? must you have frayed? must she have frayed? must we have frayed? must you have frayed? must they have frayed?
Perfecto con V-ing
must I have been fraying? must you have been fraying? must she have been fraying? must we have been fraying? must you have been fraying? must they have been fraying?
Forma interro-negativa
Forma simple
must I not fray? must you not fray? must she not fray? must we not fray? must you not fray? must they not fray?
Forma con V-ing
must I not be fraying? must you not be fraying? must she not be fraying? must we not be fraying? must you not be fraying? must they not be fraying?
Perfecto
must I not have frayed? must you not have frayed? must she not have frayed? must we not have frayed? must you not have frayed? must they not have frayed?
Perfecto con V-ing
must I not have been fraying? must you not have been fraying? must she not have been fraying? must we not have been fraying? must you not have been fraying? must they not have been fraying?