I must postpone you must postpone she must postpone we must postpone you must postpone they must postpone
Forma con V-ing
I must be postponing you must be postponing she must be postponing we must be postponing you must be postponing they must be postponing
Perfecto
I must have postponed you must have postponed she must have postponed we must have postponed you must have postponed they must have postponed
Perfecto con V-ing
I must have been postponing you must have been postponing she must have been postponing we must have been postponing you must have been postponing they must have been postponing
Negación
Forma simple
I must not postpone you must not postpone she must not postpone we must not postpone you must not postpone they must not postpone
Forma con V-ing
I must not be postponing you must not be postponing she must not be postponing we must not be postponing you must not be postponing they must not be postponing
Perfecto
I must not have postponed you must not have postponed she must not have postponed we must not have postponed you must not have postponed they must not have postponed
Perfecto con V-ing
I must not have been postponing you must not have been postponing she must not have been postponing we must not have been postponing you must not have been postponing they must not have been postponing
Forma interrogativa
Forma simple
must I postpone? must you postpone? must she postpone? must we postpone? must you postpone? must they postpone?
Forma con V-ing
must I be postponing? must you be postponing? must she be postponing? must we be postponing? must you be postponing? must they be postponing?
Perfecto
must I have postponed? must you have postponed? must she have postponed? must we have postponed? must you have postponed? must they have postponed?
Perfecto con V-ing
must I have been postponing? must you have been postponing? must she have been postponing? must we have been postponing? must you have been postponing? must they have been postponing?
Forma interro-negativa
Forma simple
must I not postpone? must you not postpone? must she not postpone? must we not postpone? must you not postpone? must they not postpone?
Forma con V-ing
must I not be postponing? must you not be postponing? must she not be postponing? must we not be postponing? must you not be postponing? must they not be postponing?
Perfecto
must I not have postponed? must you not have postponed? must she not have postponed? must we not have postponed? must you not have postponed? must they not have postponed?
Perfecto con V-ing
must I not have been postponing? must you not have been postponing? must she not have been postponing? must we not have been postponing? must you not have been postponing? must they not have been postponing?