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 could not hoop you could not hoop he could not hoop we could not hoop you could not hoop they could not hoop
V-ing form
I could not be hooping you could not be hooping he could not be hooping we could not be hooping you could not be hooping they could not be hooping
Perfect
I could not have hooped you could not have hooped he could not have hooped we could not have hooped you could not have hooped they could not have hooped
V-ing perfect
I could not have been hooping you could not have been hooping he could not have been hooping we could not have been hooping you could not have been hooping they could not 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
could I not hoop? could you not hoop? could he not hoop? could we not hoop? could you not hoop? could they not hoop?
V-ing form
could I not be hooping? could you not be hooping? could he not be hooping? could we not be hooping? could you not be hooping? could they not be hooping?
Perfect
could I not have hooped? could you not have hooped? could he not have hooped? could we not have hooped? could you not have hooped? could they not have hooped?
V-ing perfect
could I not have been hooping? could you not have been hooping? could he not have been hooping? could we not have been hooping? could you not have been hooping? could they not have been hooping?