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