I must effuse you must effuse she must effuse we must effuse you must effuse they must effuse
Forma con V-ing
I must be effusing you must be effusing she must be effusing we must be effusing you must be effusing they must be effusing
Perfecto
I must have effused you must have effused she must have effused we must have effused you must have effused they must have effused
Perfecto con V-ing
I must have been effusing you must have been effusing she must have been effusing we must have been effusing you must have been effusing they must have been effusing
Negación
Forma simple
I must not effuse you must not effuse she must not effuse we must not effuse you must not effuse they must not effuse
Forma con V-ing
I must not be effusing you must not be effusing she must not be effusing we must not be effusing you must not be effusing they must not be effusing
Perfecto
I must not have effused you must not have effused she must not have effused we must not have effused you must not have effused they must not have effused
Perfecto con V-ing
I must not have been effusing you must not have been effusing she must not have been effusing we must not have been effusing you must not have been effusing they must not have been effusing
Forma interrogativa
Forma simple
must I effuse? must you effuse? must she effuse? must we effuse? must you effuse? must they effuse?
Forma con V-ing
must I be effusing? must you be effusing? must she be effusing? must we be effusing? must you be effusing? must they be effusing?
Perfecto
must I have effused? must you have effused? must she have effused? must we have effused? must you have effused? must they have effused?
Perfecto con V-ing
must I have been effusing? must you have been effusing? must she have been effusing? must we have been effusing? must you have been effusing? must they have been effusing?
Forma interro-negativa
Forma simple
must I not effuse? must you not effuse? must she not effuse? must we not effuse? must you not effuse? must they not effuse?
Forma con V-ing
must I not be effusing? must you not be effusing? must she not be effusing? must we not be effusing? must you not be effusing? must they not be effusing?
Perfecto
must I not have effused? must you not have effused? must she not have effused? must we not have effused? must you not have effused? must they not have effused?
Perfecto con V-ing
must I not have been effusing? must you not have been effusing? must she not have been effusing? must we not have been effusing? must you not have been effusing? must they not have been effusing?