I must delay you must delay he must delay we must delay you must delay they must delay
Forma con V-ing
I must be delaying you must be delaying he must be delaying we must be delaying you must be delaying they must be delaying
Perfecto
I must have delayed you must have delayed he must have delayed we must have delayed you must have delayed they must have delayed
Perfecto con V-ing
I must have been delaying you must have been delaying he must have been delaying we must have been delaying you must have been delaying they must have been delaying
Negación
Forma simple
I must not delay you must not delay he must not delay we must not delay you must not delay they must not delay
Forma con V-ing
I must not be delaying you must not be delaying he must not be delaying we must not be delaying you must not be delaying they must not be delaying
Perfecto
I must not have delayed you must not have delayed he must not have delayed we must not have delayed you must not have delayed they must not have delayed
Perfecto con V-ing
I must not have been delaying you must not have been delaying he must not have been delaying we must not have been delaying you must not have been delaying they must not have been delaying
Forma interrogativa
Forma simple
must I delay? must you delay? must he delay? must we delay? must you delay? must they delay?
Forma con V-ing
must I be delaying? must you be delaying? must he be delaying? must we be delaying? must you be delaying? must they be delaying?
Perfecto
must I have delayed? must you have delayed? must he have delayed? must we have delayed? must you have delayed? must they have delayed?
Perfecto con V-ing
must I have been delaying? must you have been delaying? must he have been delaying? must we have been delaying? must you have been delaying? must they have been delaying?
Forma interro-negativa
Forma simple
must I not delay? must you not delay? must he not delay? must we not delay? must you not delay? must they not delay?
Forma con V-ing
must I not be delaying? must you not be delaying? must he not be delaying? must we not be delaying? must you not be delaying? must they not be delaying?
Perfecto
must I not have delayed? must you not have delayed? must he not have delayed? must we not have delayed? must you not have delayed? must they not have delayed?
Perfecto con V-ing
must I not have been delaying? must you not have been delaying? must he not have been delaying? must we not have been delaying? must you not have been delaying? must they not have been delaying?