I could consign you could consign he could consign we could consign you could consign they could consign
V-ing form
I could be consigning you could be consigning he could be consigning we could be consigning you could be consigning they could be consigning
Perfect
I could have consigned you could have consigned he could have consigned we could have consigned you could have consigned they could have consigned
V-ing perfect
I could have been consigning you could have been consigning he could have been consigning we could have been consigning you could have been consigning they could have been consigning
Negation
Simple form
I could not consign you could not consign he could not consign we could not consign you could not consign they could not consign
V-ing form
I could not be consigning you could not be consigning he could not be consigning we could not be consigning you could not be consigning they could not be consigning
Perfect
I could not have consigned you could not have consigned he could not have consigned we could not have consigned you could not have consigned they could not have consigned
V-ing perfect
I could not have been consigning you could not have been consigning he could not have been consigning we could not have been consigning you could not have been consigning they could not have been consigning
Interrogative form
Simple form
could I consign? could you consign? could he consign? could we consign? could you consign? could they consign?
V-ing form
could I be consigning? could you be consigning? could he be consigning? could we be consigning? could you be consigning? could they be consigning?
Perfect
could I have consigned? could you have consigned? could he have consigned? could we have consigned? could you have consigned? could they have consigned?
V-ing perfect
could I have been consigning? could you have been consigning? could he have been consigning? could we have been consigning? could you have been consigning? could they have been consigning?
Interro-negative form
Simple form
could I not consign? could you not consign? could he not consign? could we not consign? could you not consign? could they not consign?
V-ing form
could I not be consigning? could you not be consigning? could he not be consigning? could we not be consigning? could you not be consigning? could they not be consigning?
Perfect
could I not have consigned? could you not have consigned? could he not have consigned? could we not have consigned? could you not have consigned? could they not have consigned?
V-ing perfect
could I not have been consigning? could you not have been consigning? could he not have been consigning? could we not have been consigning? could you not have been consigning? could they not have been consigning?