I could shanghai you could shanghai he could shanghai we could shanghai you could shanghai they could shanghai
V-ing form
I could be shanghaiing you could be shanghaiing he could be shanghaiing we could be shanghaiing you could be shanghaiing they could be shanghaiing
Perfect
I could have shanghaied you could have shanghaied he could have shanghaied we could have shanghaied you could have shanghaied they could have shanghaied
V-ing perfect
I could have been shanghaiing you could have been shanghaiing he could have been shanghaiing we could have been shanghaiing you could have been shanghaiing they could have been shanghaiing
Negation
Simple form
I could not shanghai you could not shanghai he could not shanghai we could not shanghai you could not shanghai they could not shanghai
V-ing form
I could not be shanghaiing you could not be shanghaiing he could not be shanghaiing we could not be shanghaiing you could not be shanghaiing they could not be shanghaiing
Perfect
I could not have shanghaied you could not have shanghaied he could not have shanghaied we could not have shanghaied you could not have shanghaied they could not have shanghaied
V-ing perfect
I could not have been shanghaiing you could not have been shanghaiing he could not have been shanghaiing we could not have been shanghaiing you could not have been shanghaiing they could not have been shanghaiing
Interrogative form
Simple form
could I shanghai? could you shanghai? could he shanghai? could we shanghai? could you shanghai? could they shanghai?
V-ing form
could I be shanghaiing? could you be shanghaiing? could he be shanghaiing? could we be shanghaiing? could you be shanghaiing? could they be shanghaiing?
Perfect
could I have shanghaied? could you have shanghaied? could he have shanghaied? could we have shanghaied? could you have shanghaied? could they have shanghaied?
V-ing perfect
could I have been shanghaiing? could you have been shanghaiing? could he have been shanghaiing? could we have been shanghaiing? could you have been shanghaiing? could they have been shanghaiing?
Interro-negative form
Simple form
could I not shanghai? could you not shanghai? could he not shanghai? could we not shanghai? could you not shanghai? could they not shanghai?
V-ing form
could I not be shanghaiing? could you not be shanghaiing? could he not be shanghaiing? could we not be shanghaiing? could you not be shanghaiing? could they not be shanghaiing?
Perfect
could I not have shanghaied? could you not have shanghaied? could he not have shanghaied? could we not have shanghaied? could you not have shanghaied? could they not have shanghaied?
V-ing perfect
could I not have been shanghaiing? could you not have been shanghaiing? could he not have been shanghaiing? could we not have been shanghaiing? could you not have been shanghaiing? could they not have been shanghaiing?