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