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