I must obsess you must obsess he must obsess we must obsess you must obsess they must obsess
Forme en V-ing
I must be obsessing you must be obsessing he must be obsessing we must be obsessing you must be obsessing they must be obsessing
Perfect
I must have obsessed you must have obsessed he must have obsessed we must have obsessed you must have obsessed they must have obsessed
Perfect en V-ing
I must have been obsessing you must have been obsessing he must have been obsessing we must have been obsessing you must have been obsessing they must have been obsessing
Négation
Forme simple
I mustn't obsess you mustn't obsess he mustn't obsess we mustn't obsess you mustn't obsess they mustn't obsess
Forme en V-ing
I mustn't be obsessing you mustn't be obsessing he mustn't be obsessing we mustn't be obsessing you mustn't be obsessing they mustn't be obsessing
Perfect
I mustn't have obsessed you mustn't have obsessed he mustn't have obsessed we mustn't have obsessed you mustn't have obsessed they mustn't have obsessed
Perfect en V-ing
I mustn't have been obsessing you mustn't have been obsessing he mustn't have been obsessing we mustn't have been obsessing you mustn't have been obsessing they mustn't have been obsessing
Forme interrogative
Forme simple
must I obsess? must you obsess? must he obsess? must we obsess? must you obsess? must they obsess?
Forme en V-ing
must I be obsessing? must you be obsessing? must he be obsessing? must we be obsessing? must you be obsessing? must they be obsessing?
Perfect
must I have obsessed? must you have obsessed? must he have obsessed? must we have obsessed? must you have obsessed? must they have obsessed?
Perfect en V-ing
must I have been obsessing? must you have been obsessing? must he have been obsessing? must we have been obsessing? must you have been obsessing? must they have been obsessing?
Forme interro-négative
Forme simple
mustn't I obsess? mustn't you obsess? mustn't he obsess? mustn't we obsess? mustn't you obsess? mustn't they obsess?
Forme en V-ing
mustn't I be obsessing? mustn't you be obsessing? mustn't he be obsessing? mustn't we be obsessing? mustn't you be obsessing? mustn't they be obsessing?
Perfect
mustn't I have obsessed? mustn't you have obsessed? mustn't he have obsessed? mustn't we have obsessed? mustn't you have obsessed? mustn't they have obsessed?
Perfect en V-ing
mustn't I have been obsessing? mustn't you have been obsessing? mustn't he have been obsessing? mustn't we have been obsessing? mustn't you have been obsessing? mustn't they have been obsessing?