I could dribble you could dribble he could dribble we could dribble you could dribble they could dribble
V-ing form
I could be dribbling you could be dribbling he could be dribbling we could be dribbling you could be dribbling they could be dribbling
Perfect
I could have dribbled you could have dribbled he could have dribbled we could have dribbled you could have dribbled they could have dribbled
V-ing perfect
I could have been dribbling you could have been dribbling he could have been dribbling we could have been dribbling you could have been dribbling they could have been dribbling
Negation
Simple form
I couldn't dribble you couldn't dribble he couldn't dribble we couldn't dribble you couldn't dribble they couldn't dribble
V-ing form
I couldn't be dribbling you couldn't be dribbling he couldn't be dribbling we couldn't be dribbling you couldn't be dribbling they couldn't be dribbling
Perfect
I couldn't have dribbled you couldn't have dribbled he couldn't have dribbled we couldn't have dribbled you couldn't have dribbled they couldn't have dribbled
V-ing perfect
I couldn't have been dribbling you couldn't have been dribbling he couldn't have been dribbling we couldn't have been dribbling you couldn't have been dribbling they couldn't have been dribbling
Interrogative form
Simple form
could I dribble? could you dribble? could he dribble? could we dribble? could you dribble? could they dribble?
V-ing form
could I be dribbling? could you be dribbling? could he be dribbling? could we be dribbling? could you be dribbling? could they be dribbling?
Perfect
could I have dribbled? could you have dribbled? could he have dribbled? could we have dribbled? could you have dribbled? could they have dribbled?
V-ing perfect
could I have been dribbling? could you have been dribbling? could he have been dribbling? could we have been dribbling? could you have been dribbling? could they have been dribbling?
Interro-negative form
Simple form
couldn't I dribble? couldn't you dribble? couldn't he dribble? couldn't we dribble? couldn't you dribble? couldn't they dribble?
V-ing form
couldn't I be dribbling? couldn't you be dribbling? couldn't he be dribbling? couldn't we be dribbling? couldn't you be dribbling? couldn't they be dribbling?
Perfect
couldn't I have dribbled? couldn't you have dribbled? couldn't he have dribbled? couldn't we have dribbled? couldn't you have dribbled? couldn't they have dribbled?
V-ing perfect
couldn't I have been dribbling? couldn't you have been dribbling? couldn't he have been dribbling? couldn't we have been dribbling? couldn't you have been dribbling? couldn't they have been dribbling?