I must scream you must scream she must scream we must scream you must scream they must scream
Forme en V-ing
I must be screaming you must be screaming she must be screaming we must be screaming you must be screaming they must be screaming
Perfect
I must have screamed you must have screamed she must have screamed we must have screamed you must have screamed they must have screamed
Perfect en V-ing
I must have been screaming you must have been screaming she must have been screaming we must have been screaming you must have been screaming they must have been screaming
Négation
Forme simple
I mustn't scream you mustn't scream she mustn't scream we mustn't scream you mustn't scream they mustn't scream
Forme en V-ing
I mustn't be screaming you mustn't be screaming she mustn't be screaming we mustn't be screaming you mustn't be screaming they mustn't be screaming
Perfect
I mustn't have screamed you mustn't have screamed she mustn't have screamed we mustn't have screamed you mustn't have screamed they mustn't have screamed
Perfect en V-ing
I mustn't have been screaming you mustn't have been screaming she mustn't have been screaming we mustn't have been screaming you mustn't have been screaming they mustn't have been screaming
Forme interrogative
Forme simple
must I scream? must you scream? must she scream? must we scream? must you scream? must they scream?
Forme en V-ing
must I be screaming? must you be screaming? must she be screaming? must we be screaming? must you be screaming? must they be screaming?
Perfect
must I have screamed? must you have screamed? must she have screamed? must we have screamed? must you have screamed? must they have screamed?
Perfect en V-ing
must I have been screaming? must you have been screaming? must she have been screaming? must we have been screaming? must you have been screaming? must they have been screaming?
Forme interro-négative
Forme simple
mustn't I scream? mustn't you scream? mustn't she scream? mustn't we scream? mustn't you scream? mustn't they scream?
Forme en V-ing
mustn't I be screaming? mustn't you be screaming? mustn't she be screaming? mustn't we be screaming? mustn't you be screaming? mustn't they be screaming?
Perfect
mustn't I have screamed? mustn't you have screamed? mustn't she have screamed? mustn't we have screamed? mustn't you have screamed? mustn't they have screamed?
Perfect en V-ing
mustn't I have been screaming? mustn't you have been screaming? mustn't she have been screaming? mustn't we have been screaming? mustn't you have been screaming? mustn't they have been screaming?