I must prowl you must prowl he must prowl we must prowl you must prowl they must prowl
Forma con V-ing
I must be prowling you must be prowling he must be prowling we must be prowling you must be prowling they must be prowling
Perfecto
I must have prowled you must have prowled he must have prowled we must have prowled you must have prowled they must have prowled
Perfecto con V-ing
I must have been prowling you must have been prowling he must have been prowling we must have been prowling you must have been prowling they must have been prowling
Negación
Forma simple
I must not prowl you must not prowl he must not prowl we must not prowl you must not prowl they must not prowl
Forma con V-ing
I must not be prowling you must not be prowling he must not be prowling we must not be prowling you must not be prowling they must not be prowling
Perfecto
I must not have prowled you must not have prowled he must not have prowled we must not have prowled you must not have prowled they must not have prowled
Perfecto con V-ing
I must not have been prowling you must not have been prowling he must not have been prowling we must not have been prowling you must not have been prowling they must not have been prowling
Forma interrogativa
Forma simple
must I prowl? must you prowl? must he prowl? must we prowl? must you prowl? must they prowl?
Forma con V-ing
must I be prowling? must you be prowling? must he be prowling? must we be prowling? must you be prowling? must they be prowling?
Perfecto
must I have prowled? must you have prowled? must he have prowled? must we have prowled? must you have prowled? must they have prowled?
Perfecto con V-ing
must I have been prowling? must you have been prowling? must he have been prowling? must we have been prowling? must you have been prowling? must they have been prowling?
Forma interro-negativa
Forma simple
must I not prowl? must you not prowl? must he not prowl? must we not prowl? must you not prowl? must they not prowl?
Forma con V-ing
must I not be prowling? must you not be prowling? must he not be prowling? must we not be prowling? must you not be prowling? must they not be prowling?
Perfecto
must I not have prowled? must you not have prowled? must he not have prowled? must we not have prowled? must you not have prowled? must they not have prowled?
Perfecto con V-ing
must I not have been prowling? must you not have been prowling? must he not have been prowling? must we not have been prowling? must you not have been prowling? must they not have been prowling?