I could overornament you could overornament he could overornament we could overornament you could overornament they could overornament
V-ing form
I could be overornamenting you could be overornamenting he could be overornamenting we could be overornamenting you could be overornamenting they could be overornamenting
Perfect
I could have overornamented you could have overornamented he could have overornamented we could have overornamented you could have overornamented they could have overornamented
V-ing perfect
I could have been overornamenting you could have been overornamenting he could have been overornamenting we could have been overornamenting you could have been overornamenting they could have been overornamenting
Negation
Simple form
I could not overornament you could not overornament he could not overornament we could not overornament you could not overornament they could not overornament
V-ing form
I could not be overornamenting you could not be overornamenting he could not be overornamenting we could not be overornamenting you could not be overornamenting they could not be overornamenting
Perfect
I could not have overornamented you could not have overornamented he could not have overornamented we could not have overornamented you could not have overornamented they could not have overornamented
V-ing perfect
I could not have been overornamenting you could not have been overornamenting he could not have been overornamenting we could not have been overornamenting you could not have been overornamenting they could not have been overornamenting
Interrogative form
Simple form
could I overornament? could you overornament? could he overornament? could we overornament? could you overornament? could they overornament?
V-ing form
could I be overornamenting? could you be overornamenting? could he be overornamenting? could we be overornamenting? could you be overornamenting? could they be overornamenting?
Perfect
could I have overornamented? could you have overornamented? could he have overornamented? could we have overornamented? could you have overornamented? could they have overornamented?
V-ing perfect
could I have been overornamenting? could you have been overornamenting? could he have been overornamenting? could we have been overornamenting? could you have been overornamenting? could they have been overornamenting?
Interro-negative form
Simple form
could I not overornament? could you not overornament? could he not overornament? could we not overornament? could you not overornament? could they not overornament?
V-ing form
could I not be overornamenting? could you not be overornamenting? could he not be overornamenting? could we not be overornamenting? could you not be overornamenting? could they not be overornamenting?
Perfect
could I not have overornamented? could you not have overornamented? could he not have overornamented? could we not have overornamented? could you not have overornamented? could they not have overornamented?
V-ing perfect
could I not have been overornamenting? could you not have been overornamenting? could he not have been overornamenting? could we not have been overornamenting? could you not have been overornamenting? could they not have been overornamenting?