I could sate you could sate he could sate we could sate you could sate they could sate
V-ing form
I could be sating you could be sating he could be sating we could be sating you could be sating they could be sating
Perfect
I could have sated you could have sated he could have sated we could have sated you could have sated they could have sated
V-ing perfect
I could have been sating you could have been sating he could have been sating we could have been sating you could have been sating they could have been sating
Negation
Simple form
I could not sate you could not sate he could not sate we could not sate you could not sate they could not sate
V-ing form
I could not be sating you could not be sating he could not be sating we could not be sating you could not be sating they could not be sating
Perfect
I could not have sated you could not have sated he could not have sated we could not have sated you could not have sated they could not have sated
V-ing perfect
I could not have been sating you could not have been sating he could not have been sating we could not have been sating you could not have been sating they could not have been sating
Interrogative form
Simple form
could I sate? could you sate? could he sate? could we sate? could you sate? could they sate?
V-ing form
could I be sating? could you be sating? could he be sating? could we be sating? could you be sating? could they be sating?
Perfect
could I have sated? could you have sated? could he have sated? could we have sated? could you have sated? could they have sated?
V-ing perfect
could I have been sating? could you have been sating? could he have been sating? could we have been sating? could you have been sating? could they have been sating?
Interro-negative form
Simple form
could I not sate? could you not sate? could he not sate? could we not sate? could you not sate? could they not sate?
V-ing form
could I not be sating? could you not be sating? could he not be sating? could we not be sating? could you not be sating? could they not be sating?
Perfect
could I not have sated? could you not have sated? could he not have sated? could we not have sated? could you not have sated? could they not have sated?
V-ing perfect
could I not have been sating? could you not have been sating? could he not have been sating? could we not have been sating? could you not have been sating? could they not have been sating?