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