Attention, ce verbe peut ne pas exister, la conjugaison est donnée à titre d'exemple.
Affirmation
Forme simple
I must substantial you must substantial he must substantial we must substantial you must substantial they must substantial
Forme en V-ing
I must be substantialing you must be substantialing he must be substantialing we must be substantialing you must be substantialing they must be substantialing
Perfect
I must have substantialed you must have substantialed he must have substantialed we must have substantialed you must have substantialed they must have substantialed
Perfect en V-ing
I must have been substantialing you must have been substantialing he must have been substantialing we must have been substantialing you must have been substantialing they must have been substantialing
Négation
Forme simple
I mustn't substantial you mustn't substantial he mustn't substantial we mustn't substantial you mustn't substantial they mustn't substantial
Forme en V-ing
I mustn't be substantialing you mustn't be substantialing he mustn't be substantialing we mustn't be substantialing you mustn't be substantialing they mustn't be substantialing
Perfect
I mustn't have substantialed you mustn't have substantialed he mustn't have substantialed we mustn't have substantialed you mustn't have substantialed they mustn't have substantialed
Perfect en V-ing
I mustn't have been substantialing you mustn't have been substantialing he mustn't have been substantialing we mustn't have been substantialing you mustn't have been substantialing they mustn't have been substantialing
Forme interrogative
Forme simple
must I substantial? must you substantial? must he substantial? must we substantial? must you substantial? must they substantial?
Forme en V-ing
must I be substantialing? must you be substantialing? must he be substantialing? must we be substantialing? must you be substantialing? must they be substantialing?
Perfect
must I have substantialed? must you have substantialed? must he have substantialed? must we have substantialed? must you have substantialed? must they have substantialed?
Perfect en V-ing
must I have been substantialing? must you have been substantialing? must he have been substantialing? must we have been substantialing? must you have been substantialing? must they have been substantialing?
Forme interro-négative
Forme simple
mustn't I substantial? mustn't you substantial? mustn't he substantial? mustn't we substantial? mustn't you substantial? mustn't they substantial?
Forme en V-ing
mustn't I be substantialing? mustn't you be substantialing? mustn't he be substantialing? mustn't we be substantialing? mustn't you be substantialing? mustn't they be substantialing?
Perfect
mustn't I have substantialed? mustn't you have substantialed? mustn't he have substantialed? mustn't we have substantialed? mustn't you have substantialed? mustn't they have substantialed?
Perfect en V-ing
mustn't I have been substantialing? mustn't you have been substantialing? mustn't he have been substantialing? mustn't we have been substantialing? mustn't you have been substantialing? mustn't they have been substantialing?