I could scandal you could scandal he could scandal we could scandal you could scandal they could scandal
V-ing form
I could be scandaling you could be scandaling he could be scandaling we could be scandaling you could be scandaling they could be scandaling
Perfect
I could have scandaled you could have scandaled he could have scandaled we could have scandaled you could have scandaled they could have scandaled
V-ing perfect
I could have been scandaling you could have been scandaling he could have been scandaling we could have been scandaling you could have been scandaling they could have been scandaling
Negation
Simple form
I couldn't scandal you couldn't scandal he couldn't scandal we couldn't scandal you couldn't scandal they couldn't scandal
V-ing form
I couldn't be scandaling you couldn't be scandaling he couldn't be scandaling we couldn't be scandaling you couldn't be scandaling they couldn't be scandaling
Perfect
I couldn't have scandaled you couldn't have scandaled he couldn't have scandaled we couldn't have scandaled you couldn't have scandaled they couldn't have scandaled
V-ing perfect
I couldn't have been scandaling you couldn't have been scandaling he couldn't have been scandaling we couldn't have been scandaling you couldn't have been scandaling they couldn't have been scandaling
Interrogative form
Simple form
could I scandal? could you scandal? could he scandal? could we scandal? could you scandal? could they scandal?
V-ing form
could I be scandaling? could you be scandaling? could he be scandaling? could we be scandaling? could you be scandaling? could they be scandaling?
Perfect
could I have scandaled? could you have scandaled? could he have scandaled? could we have scandaled? could you have scandaled? could they have scandaled?
V-ing perfect
could I have been scandaling? could you have been scandaling? could he have been scandaling? could we have been scandaling? could you have been scandaling? could they have been scandaling?
Interro-negative form
Simple form
couldn't I scandal? couldn't you scandal? couldn't he scandal? couldn't we scandal? couldn't you scandal? couldn't they scandal?
V-ing form
couldn't I be scandaling? couldn't you be scandaling? couldn't he be scandaling? couldn't we be scandaling? couldn't you be scandaling? couldn't they be scandaling?
Perfect
couldn't I have scandaled? couldn't you have scandaled? couldn't he have scandaled? couldn't we have scandaled? couldn't you have scandaled? couldn't they have scandaled?
V-ing perfect
couldn't I have been scandaling? couldn't you have been scandaling? couldn't he have been scandaling? couldn't we have been scandaling? couldn't you have been scandaling? couldn't they have been scandaling?