I must lower you must lower she must lower we must lower you must lower they must lower
Forma con V-ing
I must be lowering you must be lowering she must be lowering we must be lowering you must be lowering they must be lowering
Perfecto
I must have lowered you must have lowered she must have lowered we must have lowered you must have lowered they must have lowered
Perfecto con V-ing
I must have been lowering you must have been lowering she must have been lowering we must have been lowering you must have been lowering they must have been lowering
Negación
Forma simple
I mustn't lower you mustn't lower she mustn't lower we mustn't lower you mustn't lower they mustn't lower
Forma con V-ing
I mustn't be lowering you mustn't be lowering she mustn't be lowering we mustn't be lowering you mustn't be lowering they mustn't be lowering
Perfecto
I mustn't have lowered you mustn't have lowered she mustn't have lowered we mustn't have lowered you mustn't have lowered they mustn't have lowered
Perfecto con V-ing
I mustn't have been lowering you mustn't have been lowering she mustn't have been lowering we mustn't have been lowering you mustn't have been lowering they mustn't have been lowering
Forma interrogativa
Forma simple
must I lower? must you lower? must she lower? must we lower? must you lower? must they lower?
Forma con V-ing
must I be lowering? must you be lowering? must she be lowering? must we be lowering? must you be lowering? must they be lowering?
Perfecto
must I have lowered? must you have lowered? must she have lowered? must we have lowered? must you have lowered? must they have lowered?
Perfecto con V-ing
must I have been lowering? must you have been lowering? must she have been lowering? must we have been lowering? must you have been lowering? must they have been lowering?
Forma interro-negativa
Forma simple
mustn't I lower? mustn't you lower? mustn't she lower? mustn't we lower? mustn't you lower? mustn't they lower?
Forma con V-ing
mustn't I be lowering? mustn't you be lowering? mustn't she be lowering? mustn't we be lowering? mustn't you be lowering? mustn't they be lowering?
Perfecto
mustn't I have lowered? mustn't you have lowered? mustn't she have lowered? mustn't we have lowered? mustn't you have lowered? mustn't they have lowered?
Perfecto con V-ing
mustn't I have been lowering? mustn't you have been lowering? mustn't she have been lowering? mustn't we have been lowering? mustn't you have been lowering? mustn't they have been lowering?