I could right you could right she could right we could right you could right they could right
V-ing form
I could be righting you could be righting she could be righting we could be righting you could be righting they could be righting
Perfect
I could have righted you could have righted she 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 she could have been righting we could have been righting you could have been righting they could have been righting
Negation
Simple form
I couldn't right you couldn't right she couldn't right we couldn't right you couldn't right they couldn't right
V-ing form
I couldn't be righting you couldn't be righting she couldn't be righting we couldn't be righting you couldn't be righting they couldn't be righting
Perfect
I couldn't have righted you couldn't have righted she couldn't have righted we couldn't have righted you couldn't have righted they couldn't have righted
V-ing perfect
I couldn't have been righting you couldn't have been righting she couldn't have been righting we couldn't have been righting you couldn't have been righting they couldn't have been righting
Interrogative form
Simple form
could I right? could you right? could she right? could we right? could you right? could they right?
V-ing form
could I be righting? could you be righting? could she be righting? could we be righting? could you be righting? could they be righting?
Perfect
could I have righted? could you have righted? could she 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 she have been righting? could we have been righting? could you have been righting? could they have been righting?
Interro-negative form
Simple form
couldn't I right? couldn't you right? couldn't she right? couldn't we right? couldn't you right? couldn't they right?
V-ing form
couldn't I be righting? couldn't you be righting? couldn't she be righting? couldn't we be righting? couldn't you be righting? couldn't they be righting?
Perfect
couldn't I have righted? couldn't you have righted? couldn't she have righted? couldn't we have righted? couldn't you have righted? couldn't they have righted?
V-ing perfect
couldn't I have been righting? couldn't you have been righting? couldn't she have been righting? couldn't we have been righting? couldn't you have been righting? couldn't they have been righting?