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