I must growl you must growl he must growl we must growl you must growl they must growl
Forma con V-ing
I must be growling you must be growling he must be growling we must be growling you must be growling they must be growling
Perfecto
I must have growled you must have growled he must have growled we must have growled you must have growled they must have growled
Perfecto con V-ing
I must have been growling you must have been growling he must have been growling we must have been growling you must have been growling they must have been growling
Negación
Forma simple
I must not growl you must not growl he must not growl we must not growl you must not growl they must not growl
Forma con V-ing
I must not be growling you must not be growling he must not be growling we must not be growling you must not be growling they must not be growling
Perfecto
I must not have growled you must not have growled he must not have growled we must not have growled you must not have growled they must not have growled
Perfecto con V-ing
I must not have been growling you must not have been growling he must not have been growling we must not have been growling you must not have been growling they must not have been growling
Forma interrogativa
Forma simple
must I growl? must you growl? must he growl? must we growl? must you growl? must they growl?
Forma con V-ing
must I be growling? must you be growling? must he be growling? must we be growling? must you be growling? must they be growling?
Perfecto
must I have growled? must you have growled? must he have growled? must we have growled? must you have growled? must they have growled?
Perfecto con V-ing
must I have been growling? must you have been growling? must he have been growling? must we have been growling? must you have been growling? must they have been growling?
Forma interro-negativa
Forma simple
must I not growl? must you not growl? must he not growl? must we not growl? must you not growl? must they not growl?
Forma con V-ing
must I not be growling? must you not be growling? must he not be growling? must we not be growling? must you not be growling? must they not be growling?
Perfecto
must I not have growled? must you not have growled? must he not have growled? must we not have growled? must you not have growled? must they not have growled?
Perfecto con V-ing
must I not have been growling? must you not have been growling? must he not have been growling? must we not have been growling? must you not have been growling? must they not have been growling?