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 could not ochre you could not ochre he could not ochre we could not ochre you could not ochre they could not ochre
V-ing form
I could not be ochring you could not be ochring he could not be ochring we could not be ochring you could not be ochring they could not be ochring
Perfect
I could not have ochred you could not have ochred he could not have ochred we could not have ochred you could not have ochred they could not have ochred
V-ing perfect
I could not have been ochring you could not have been ochring he could not have been ochring we could not have been ochring you could not have been ochring they could not 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
could I not ochre? could you not ochre? could he not ochre? could we not ochre? could you not ochre? could they not ochre?
V-ing form
could I not be ochring? could you not be ochring? could he not be ochring? could we not be ochring? could you not be ochring? could they not be ochring?
Perfect
could I not have ochred? could you not have ochred? could he not have ochred? could we not have ochred? could you not have ochred? could they not have ochred?
V-ing perfect
could I not have been ochring? could you not have been ochring? could he not have been ochring? could we not have been ochring? could you not have been ochring? could they not have been ochring?