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