I could dice you could dice she could dice we could dice you could dice they could dice
V-ing form
I could be dicing you could be dicing she could be dicing we could be dicing you could be dicing they could be dicing
Perfect
I could have diced you could have diced she could have diced we could have diced you could have diced they could have diced
V-ing perfect
I could have been dicing you could have been dicing she could have been dicing we could have been dicing you could have been dicing they could have been dicing
Negation
Simple form
I could not dice you could not dice she could not dice we could not dice you could not dice they could not dice
V-ing form
I could not be dicing you could not be dicing she could not be dicing we could not be dicing you could not be dicing they could not be dicing
Perfect
I could not have diced you could not have diced she could not have diced we could not have diced you could not have diced they could not have diced
V-ing perfect
I could not have been dicing you could not have been dicing she could not have been dicing we could not have been dicing you could not have been dicing they could not have been dicing
Interrogative form
Simple form
could I dice? could you dice? could she dice? could we dice? could you dice? could they dice?
V-ing form
could I be dicing? could you be dicing? could she be dicing? could we be dicing? could you be dicing? could they be dicing?
Perfect
could I have diced? could you have diced? could she have diced? could we have diced? could you have diced? could they have diced?
V-ing perfect
could I have been dicing? could you have been dicing? could she have been dicing? could we have been dicing? could you have been dicing? could they have been dicing?
Interro-negative form
Simple form
could I not dice? could you not dice? could she not dice? could we not dice? could you not dice? could they not dice?
V-ing form
could I not be dicing? could you not be dicing? could she not be dicing? could we not be dicing? could you not be dicing? could they not be dicing?
Perfect
could I not have diced? could you not have diced? could she not have diced? could we not have diced? could you not have diced? could they not have diced?
V-ing perfect
could I not have been dicing? could you not have been dicing? could she not have been dicing? could we not have been dicing? could you not have been dicing? could they not have been dicing?