I must lock you must lock he must lock we must lock you must lock they must lock
Forma com V-ing
I must be locking you must be locking he must be locking we must be locking you must be locking they must be locking
Perfeito
I must have locked you must have locked he must have locked we must have locked you must have locked they must have locked
Perfeito com V-ing
I must have been locking you must have been locking he must have been locking we must have been locking you must have been locking they must have been locking
Negação
Forma simple
I must not lock you must not lock he must not lock we must not lock you must not lock they must not lock
Forma com V-ing
I must not be locking you must not be locking he must not be locking we must not be locking you must not be locking they must not be locking
Perfeito
I must not have locked you must not have locked he must not have locked we must not have locked you must not have locked they must not have locked
Perfeito com V-ing
I must not have been locking you must not have been locking he must not have been locking we must not have been locking you must not have been locking they must not have been locking
Forma interrogativa
Forma simple
must I lock? must you lock? must he lock? must we lock? must you lock? must they lock?
Forma com V-ing
must I be locking? must you be locking? must he be locking? must we be locking? must you be locking? must they be locking?
Perfeito
must I have locked? must you have locked? must he have locked? must we have locked? must you have locked? must they have locked?
Perfeito com V-ing
must I have been locking? must you have been locking? must he have been locking? must we have been locking? must you have been locking? must they have been locking?
Forma interro-Negação
Forma simple
must I not lock? must you not lock? must he not lock? must we not lock? must you not lock? must they not lock?
Forma com V-ing
must I not be locking? must you not be locking? must he not be locking? must we not be locking? must you not be locking? must they not be locking?
Perfeito
must I not have locked? must you not have locked? must he not have locked? must we not have locked? must you not have locked? must they not have locked?
Perfeito com V-ing
must I not have been locking? must you not have been locking? must he not have been locking? must we not have been locking? must you not have been locking? must they not have been locking?