I could scour you could scour he could scour we could scour you could scour they could scour
Forme en V-ing
I could be scouring you could be scouring he could be scouring we could be scouring you could be scouring they could be scouring
Perfect
I could have scoured you could have scoured he could have scoured we could have scoured you could have scoured they could have scoured
Perfect en V-ing
I could have been scouring you could have been scouring he could have been scouring we could have been scouring you could have been scouring they could have been scouring
Négation
Forme simple
I could not scour you could not scour he could not scour we could not scour you could not scour they could not scour
Forme en V-ing
I could not be scouring you could not be scouring he could not be scouring we could not be scouring you could not be scouring they could not be scouring
Perfect
I could not have scoured you could not have scoured he could not have scoured we could not have scoured you could not have scoured they could not have scoured
Perfect en V-ing
I could not have been scouring you could not have been scouring he could not have been scouring we could not have been scouring you could not have been scouring they could not have been scouring
Forme interrogative
Forme simple
could I scour? could you scour? could he scour? could we scour? could you scour? could they scour?
Forme en V-ing
could I be scouring? could you be scouring? could he be scouring? could we be scouring? could you be scouring? could they be scouring?
Perfect
could I have scoured? could you have scoured? could he have scoured? could we have scoured? could you have scoured? could they have scoured?
Perfect en V-ing
could I have been scouring? could you have been scouring? could he have been scouring? could we have been scouring? could you have been scouring? could they have been scouring?
Forme interro-négative
Forme simple
could I not scour? could you not scour? could he not scour? could we not scour? could you not scour? could they not scour?
Forme en V-ing
could I not be scouring? could you not be scouring? could he not be scouring? could we not be scouring? could you not be scouring? could they not be scouring?
Perfect
could I not have scoured? could you not have scoured? could he not have scoured? could we not have scoured? could you not have scoured? could they not have scoured?
Perfect en V-ing
could I not have been scouring? could you not have been scouring? could he not have been scouring? could we not have been scouring? could you not have been scouring? could they not have been scouring?