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 couldn't dice you couldn't dice she couldn't dice we couldn't dice you couldn't dice they couldn't dice
V-ing form
I couldn't be dicing you couldn't be dicing she couldn't be dicing we couldn't be dicing you couldn't be dicing they couldn't be dicing
Perfect
I couldn't have diced you couldn't have diced she couldn't have diced we couldn't have diced you couldn't have diced they couldn't have diced
V-ing perfect
I couldn't have been dicing you couldn't have been dicing she couldn't have been dicing we couldn't have been dicing you couldn't have been dicing they couldn't 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
couldn't I dice? couldn't you dice? couldn't she dice? couldn't we dice? couldn't you dice? couldn't they dice?
V-ing form
couldn't I be dicing? couldn't you be dicing? couldn't she be dicing? couldn't we be dicing? couldn't you be dicing? couldn't they be dicing?
Perfect
couldn't I have diced? couldn't you have diced? couldn't she have diced? couldn't we have diced? couldn't you have diced? couldn't they have diced?
V-ing perfect
couldn't I have been dicing? couldn't you have been dicing? couldn't she have been dicing? couldn't we have been dicing? couldn't you have been dicing? couldn't they have been dicing?