I must perfuse you must perfuse he must perfuse we must perfuse you must perfuse they must perfuse
Forma con V-ing
I must be perfusing you must be perfusing he must be perfusing we must be perfusing you must be perfusing they must be perfusing
Perfecto
I must have perfused you must have perfused he must have perfused we must have perfused you must have perfused they must have perfused
Perfecto con V-ing
I must have been perfusing you must have been perfusing he must have been perfusing we must have been perfusing you must have been perfusing they must have been perfusing
Negación
Forma simple
I must not perfuse you must not perfuse he must not perfuse we must not perfuse you must not perfuse they must not perfuse
Forma con V-ing
I must not be perfusing you must not be perfusing he must not be perfusing we must not be perfusing you must not be perfusing they must not be perfusing
Perfecto
I must not have perfused you must not have perfused he must not have perfused we must not have perfused you must not have perfused they must not have perfused
Perfecto con V-ing
I must not have been perfusing you must not have been perfusing he must not have been perfusing we must not have been perfusing you must not have been perfusing they must not have been perfusing
Forma interrogativa
Forma simple
must I perfuse? must you perfuse? must he perfuse? must we perfuse? must you perfuse? must they perfuse?
Forma con V-ing
must I be perfusing? must you be perfusing? must he be perfusing? must we be perfusing? must you be perfusing? must they be perfusing?
Perfecto
must I have perfused? must you have perfused? must he have perfused? must we have perfused? must you have perfused? must they have perfused?
Perfecto con V-ing
must I have been perfusing? must you have been perfusing? must he have been perfusing? must we have been perfusing? must you have been perfusing? must they have been perfusing?
Forma interro-negativa
Forma simple
must I not perfuse? must you not perfuse? must he not perfuse? must we not perfuse? must you not perfuse? must they not perfuse?
Forma con V-ing
must I not be perfusing? must you not be perfusing? must he not be perfusing? must we not be perfusing? must you not be perfusing? must they not be perfusing?
Perfecto
must I not have perfused? must you not have perfused? must he not have perfused? must we not have perfused? must you not have perfused? must they not have perfused?
Perfecto con V-ing
must I not have been perfusing? must you not have been perfusing? must he not have been perfusing? must we not have been perfusing? must you not have been perfusing? must they not have been perfusing?