I could score you could score he could score we could score you could score they could score
V-ing form
I could be scoring you could be scoring he could be scoring we could be scoring you could be scoring they could be scoring
Perfect
I could have scored you could have scored he could have scored we could have scored you could have scored they could have scored
V-ing perfect
I could have been scoring you could have been scoring he could have been scoring we could have been scoring you could have been scoring they could have been scoring
Negation
Simple form
I could not score you could not score he could not score we could not score you could not score they could not score
V-ing form
I could not be scoring you could not be scoring he could not be scoring we could not be scoring you could not be scoring they could not be scoring
Perfect
I could not have scored you could not have scored he could not have scored we could not have scored you could not have scored they could not have scored
V-ing perfect
I could not have been scoring you could not have been scoring he could not have been scoring we could not have been scoring you could not have been scoring they could not have been scoring
Interrogative form
Simple form
could I score? could you score? could he score? could we score? could you score? could they score?
V-ing form
could I be scoring? could you be scoring? could he be scoring? could we be scoring? could you be scoring? could they be scoring?
Perfect
could I have scored? could you have scored? could he have scored? could we have scored? could you have scored? could they have scored?
V-ing perfect
could I have been scoring? could you have been scoring? could he have been scoring? could we have been scoring? could you have been scoring? could they have been scoring?
Interro-negative form
Simple form
could I not score? could you not score? could he not score? could we not score? could you not score? could they not score?
V-ing form
could I not be scoring? could you not be scoring? could he not be scoring? could we not be scoring? could you not be scoring? could they not be scoring?
Perfect
could I not have scored? could you not have scored? could he not have scored? could we not have scored? could you not have scored? could they not have scored?
V-ing perfect
could I not have been scoring? could you not have been scoring? could he not have been scoring? could we not have been scoring? could you not have been scoring? could they not have been scoring?