I must widen you must widen he must widen we must widen you must widen they must widen
Forma con V-ing
I must be widening you must be widening he must be widening we must be widening you must be widening they must be widening
Perfecto
I must have widened you must have widened he must have widened we must have widened you must have widened they must have widened
Perfecto con V-ing
I must have been widening you must have been widening he must have been widening we must have been widening you must have been widening they must have been widening
Negación
Forma simple
I mustn't widen you mustn't widen he mustn't widen we mustn't widen you mustn't widen they mustn't widen
Forma con V-ing
I mustn't be widening you mustn't be widening he mustn't be widening we mustn't be widening you mustn't be widening they mustn't be widening
Perfecto
I mustn't have widened you mustn't have widened he mustn't have widened we mustn't have widened you mustn't have widened they mustn't have widened
Perfecto con V-ing
I mustn't have been widening you mustn't have been widening he mustn't have been widening we mustn't have been widening you mustn't have been widening they mustn't have been widening
Forma interrogativa
Forma simple
must I widen? must you widen? must he widen? must we widen? must you widen? must they widen?
Forma con V-ing
must I be widening? must you be widening? must he be widening? must we be widening? must you be widening? must they be widening?
Perfecto
must I have widened? must you have widened? must he have widened? must we have widened? must you have widened? must they have widened?
Perfecto con V-ing
must I have been widening? must you have been widening? must he have been widening? must we have been widening? must you have been widening? must they have been widening?
Forma interro-negativa
Forma simple
mustn't I widen? mustn't you widen? mustn't he widen? mustn't we widen? mustn't you widen? mustn't they widen?
Forma con V-ing
mustn't I be widening? mustn't you be widening? mustn't he be widening? mustn't we be widening? mustn't you be widening? mustn't they be widening?
Perfecto
mustn't I have widened? mustn't you have widened? mustn't he have widened? mustn't we have widened? mustn't you have widened? mustn't they have widened?
Perfecto con V-ing
mustn't I have been widening? mustn't you have been widening? mustn't he have been widening? mustn't we have been widening? mustn't you have been widening? mustn't they have been widening?