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