I could right you could right he could right we could right you could right they could right
V-ing form
I could be righting you could be righting he could be righting we could be righting you could be righting they could be righting
Perfect
I could have righted you could have righted he could have righted we could have righted you could have righted they could have righted
V-ing perfect
I could have been righting you could have been righting he could have been righting we could have been righting you could have been righting they could have been righting
Negation
Simple form
I could not right you could not right he could not right we could not right you could not right they could not right
V-ing form
I could not be righting you could not be righting he could not be righting we could not be righting you could not be righting they could not be righting
Perfect
I could not have righted you could not have righted he could not have righted we could not have righted you could not have righted they could not have righted
V-ing perfect
I could not have been righting you could not have been righting he could not have been righting we could not have been righting you could not have been righting they could not have been righting
Interrogative form
Simple form
could I right? could you right? could he right? could we right? could you right? could they right?
V-ing form
could I be righting? could you be righting? could he be righting? could we be righting? could you be righting? could they be righting?
Perfect
could I have righted? could you have righted? could he have righted? could we have righted? could you have righted? could they have righted?
V-ing perfect
could I have been righting? could you have been righting? could he have been righting? could we have been righting? could you have been righting? could they have been righting?
Interro-negative form
Simple form
could I not right? could you not right? could he not right? could we not right? could you not right? could they not right?
V-ing form
could I not be righting? could you not be righting? could he not be righting? could we not be righting? could you not be righting? could they not be righting?
Perfect
could I not have righted? could you not have righted? could he not have righted? could we not have righted? could you not have righted? could they not have righted?
V-ing perfect
could I not have been righting? could you not have been righting? could he not have been righting? could we not have been righting? could you not have been righting? could they not have been righting?