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