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