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