I must purge you must purge she must purge we must purge you must purge they must purge
Forma con V-ing
I must be purging you must be purging she must be purging we must be purging you must be purging they must be purging
Perfecto
I must have purged you must have purged she must have purged we must have purged you must have purged they must have purged
Perfecto con V-ing
I must have been purging you must have been purging she must have been purging we must have been purging you must have been purging they must have been purging
Negación
Forma simple
I must not purge you must not purge she must not purge we must not purge you must not purge they must not purge
Forma con V-ing
I must not be purging you must not be purging she must not be purging we must not be purging you must not be purging they must not be purging
Perfecto
I must not have purged you must not have purged she must not have purged we must not have purged you must not have purged they must not have purged
Perfecto con V-ing
I must not have been purging you must not have been purging she must not have been purging we must not have been purging you must not have been purging they must not have been purging
Forma interrogativa
Forma simple
must I purge? must you purge? must she purge? must we purge? must you purge? must they purge?
Forma con V-ing
must I be purging? must you be purging? must she be purging? must we be purging? must you be purging? must they be purging?
Perfecto
must I have purged? must you have purged? must she have purged? must we have purged? must you have purged? must they have purged?
Perfecto con V-ing
must I have been purging? must you have been purging? must she have been purging? must we have been purging? must you have been purging? must they have been purging?
Forma interro-negativa
Forma simple
must I not purge? must you not purge? must she not purge? must we not purge? must you not purge? must they not purge?
Forma con V-ing
must I not be purging? must you not be purging? must she not be purging? must we not be purging? must you not be purging? must they not be purging?
Perfecto
must I not have purged? must you not have purged? must she not have purged? must we not have purged? must you not have purged? must they not have purged?
Perfecto con V-ing
must I not have been purging? must you not have been purging? must she not have been purging? must we not have been purging? must you not have been purging? must they not have been purging?