I could innovate you could innovate he could innovate we could innovate you could innovate they could innovate
V-ing form
I could be innovating you could be innovating he could be innovating we could be innovating you could be innovating they could be innovating
Perfect
I could have innovated you could have innovated he could have innovated we could have innovated you could have innovated they could have innovated
V-ing perfect
I could have been innovating you could have been innovating he could have been innovating we could have been innovating you could have been innovating they could have been innovating
Negation
Simple form
I could not innovate you could not innovate he could not innovate we could not innovate you could not innovate they could not innovate
V-ing form
I could not be innovating you could not be innovating he could not be innovating we could not be innovating you could not be innovating they could not be innovating
Perfect
I could not have innovated you could not have innovated he could not have innovated we could not have innovated you could not have innovated they could not have innovated
V-ing perfect
I could not have been innovating you could not have been innovating he could not have been innovating we could not have been innovating you could not have been innovating they could not have been innovating
Interrogative form
Simple form
could I innovate? could you innovate? could he innovate? could we innovate? could you innovate? could they innovate?
V-ing form
could I be innovating? could you be innovating? could he be innovating? could we be innovating? could you be innovating? could they be innovating?
Perfect
could I have innovated? could you have innovated? could he have innovated? could we have innovated? could you have innovated? could they have innovated?
V-ing perfect
could I have been innovating? could you have been innovating? could he have been innovating? could we have been innovating? could you have been innovating? could they have been innovating?
Interro-negative form
Simple form
could I not innovate? could you not innovate? could he not innovate? could we not innovate? could you not innovate? could they not innovate?
V-ing form
could I not be innovating? could you not be innovating? could he not be innovating? could we not be innovating? could you not be innovating? could they not be innovating?
Perfect
could I not have innovated? could you not have innovated? could he not have innovated? could we not have innovated? could you not have innovated? could they not have innovated?
V-ing perfect
could I not have been innovating? could you not have been innovating? could he not have been innovating? could we not have been innovating? could you not have been innovating? could they not have been innovating?