I could scour you could scour she could scour we could scour you could scour they could scour
Forma con V-ing
I could be scouring you could be scouring she could be scouring we could be scouring you could be scouring they could be scouring
Perfecto
I could have scoured you could have scoured she could have scoured we could have scoured you could have scoured they could have scoured
Perfecto con V-ing
I could have been scouring you could have been scouring she could have been scouring we could have been scouring you could have been scouring they could have been scouring
Negación
Forma simple
I could not scour you could not scour she could not scour we could not scour you could not scour they could not scour
Forma con V-ing
I could not be scouring you could not be scouring she could not be scouring we could not be scouring you could not be scouring they could not be scouring
Perfecto
I could not have scoured you could not have scoured she could not have scoured we could not have scoured you could not have scoured they could not have scoured
Perfecto con V-ing
I could not have been scouring you could not have been scouring she could not have been scouring we could not have been scouring you could not have been scouring they could not have been scouring
Forma interrogativa
Forma simple
could I scour? could you scour? could she scour? could we scour? could you scour? could they scour?
Forma con V-ing
could I be scouring? could you be scouring? could she be scouring? could we be scouring? could you be scouring? could they be scouring?
Perfecto
could I have scoured? could you have scoured? could she have scoured? could we have scoured? could you have scoured? could they have scoured?
Perfecto con V-ing
could I have been scouring? could you have been scouring? could she have been scouring? could we have been scouring? could you have been scouring? could they have been scouring?
Forma interro-negativa
Forma simple
could I not scour? could you not scour? could she not scour? could we not scour? could you not scour? could they not scour?
Forma con V-ing
could I not be scouring? could you not be scouring? could she not be scouring? could we not be scouring? could you not be scouring? could they not be scouring?
Perfecto
could I not have scoured? could you not have scoured? could she not have scoured? could we not have scoured? could you not have scoured? could they not have scoured?
Perfecto con V-ing
could I not have been scouring? could you not have been scouring? could she not have been scouring? could we not have been scouring? could you not have been scouring? could they not have been scouring?