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 must not grope you must not grope he must not grope we must not grope you must not grope they must not grope
Forma con V-ing
I must not be groping you must not be groping he must not be groping we must not be groping you must not be groping they must not be groping
Perfecto
I must not have groped you must not have groped he must not have groped we must not have groped you must not have groped they must not have groped
Perfecto con V-ing
I must not have been groping you must not have been groping he must not have been groping we must not have been groping you must not have been groping they must not 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
must I not grope? must you not grope? must he not grope? must we not grope? must you not grope? must they not grope?
Forma con V-ing
must I not be groping? must you not be groping? must he not be groping? must we not be groping? must you not be groping? must they not be groping?
Perfecto
must I not have groped? must you not have groped? must he not have groped? must we not have groped? must you not have groped? must they not have groped?
Perfecto con V-ing
must I not have been groping? must you not have been groping? must he not have been groping? must we not have been groping? must you not have been groping? must they not have been groping?