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