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I could have repealed you could have repealed he could have repealed we could have repealed you could have repealed they could have repealed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I couldn't have repealed you couldn't have repealed he couldn't have repealed we couldn't have repealed you couldn't have repealed they couldn't have repealed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could I have repealed? could you have repealed? could he have repealed? could we have repealed? could you have repealed? could they have repealed?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couldn't I have repealed? couldn't you have repealed? couldn't he have repealed? couldn't we have repealed? couldn't you have repealed? couldn't they have repealed?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