I could score you could score she could score we could score you could score they could score
V-ing form
I could be scoring you could be scoring she could be scoring we could be scoring you could be scoring they could be scoring
Perfect
I could have scored you could have scored she 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 she could have been scoring we could have been scoring you could have been scoring they could have been scoring
Negation
Simple form
I couldn't score you couldn't score she couldn't score we couldn't score you couldn't score they couldn't score
V-ing form
I couldn't be scoring you couldn't be scoring she couldn't be scoring we couldn't be scoring you couldn't be scoring they couldn't be scoring
Perfect
I couldn't have scored you couldn't have scored she couldn't have scored we couldn't have scored you couldn't have scored they couldn't have scored
V-ing perfect
I couldn't have been scoring you couldn't have been scoring she couldn't have been scoring we couldn't have been scoring you couldn't have been scoring they couldn't have been scoring
Interrogative form
Simple form
could I score? could you score? could she score? could we score? could you score? could they score?
V-ing form
could I be scoring? could you be scoring? could she be scoring? could we be scoring? could you be scoring? could they be scoring?
Perfect
could I have scored? could you have scored? could she 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 she have been scoring? could we have been scoring? could you have been scoring? could they have been scoring?
Interro-negative form
Simple form
couldn't I score? couldn't you score? couldn't she score? couldn't we score? couldn't you score? couldn't they score?
V-ing form
couldn't I be scoring? couldn't you be scoring? couldn't she be scoring? couldn't we be scoring? couldn't you be scoring? couldn't they be scoring?
Perfect
couldn't I have scored? couldn't you have scored? couldn't she have scored? couldn't we have scored? couldn't you have scored? couldn't they have scored?
V-ing perfect
couldn't I have been scoring? couldn't you have been scoring? couldn't she have been scoring? couldn't we have been scoring? couldn't you have been scoring? couldn't they have been scoring?