I could saddle-stitch you could saddle-stitch he could saddle-stitch we could saddle-stitch you could saddle-stitch they could saddle-stitch
V-ing form
I could be saddle-stitching you could be saddle-stitching he could be saddle-stitching we could be saddle-stitching you could be saddle-stitching they could be saddle-stitching
Perfect
I could have saddle-stitched you could have saddle-stitched he could have saddle-stitched we could have saddle-stitched you could have saddle-stitched they could have saddle-stitched
V-ing perfect
I could have been saddle-stitching you could have been saddle-stitching he could have been saddle-stitching we could have been saddle-stitching you could have been saddle-stitching they could have been saddle-stitching
Negation
Simple form
I couldn't saddle-stitch you couldn't saddle-stitch he couldn't saddle-stitch we couldn't saddle-stitch you couldn't saddle-stitch they couldn't saddle-stitch
V-ing form
I couldn't be saddle-stitching you couldn't be saddle-stitching he couldn't be saddle-stitching we couldn't be saddle-stitching you couldn't be saddle-stitching they couldn't be saddle-stitching
Perfect
I couldn't have saddle-stitched you couldn't have saddle-stitched he couldn't have saddle-stitched we couldn't have saddle-stitched you couldn't have saddle-stitched they couldn't have saddle-stitched
V-ing perfect
I couldn't have been saddle-stitching you couldn't have been saddle-stitching he couldn't have been saddle-stitching we couldn't have been saddle-stitching you couldn't have been saddle-stitching they couldn't have been saddle-stitching
Interrogative form
Simple form
could I saddle-stitch? could you saddle-stitch? could he saddle-stitch? could we saddle-stitch? could you saddle-stitch? could they saddle-stitch?
V-ing form
could I be saddle-stitching? could you be saddle-stitching? could he be saddle-stitching? could we be saddle-stitching? could you be saddle-stitching? could they be saddle-stitching?
Perfect
could I have saddle-stitched? could you have saddle-stitched? could he have saddle-stitched? could we have saddle-stitched? could you have saddle-stitched? could they have saddle-stitched?
V-ing perfect
could I have been saddle-stitching? could you have been saddle-stitching? could he have been saddle-stitching? could we have been saddle-stitching? could you have been saddle-stitching? could they have been saddle-stitching?
Interro-negative form
Simple form
couldn't I saddle-stitch? couldn't you saddle-stitch? couldn't he saddle-stitch? couldn't we saddle-stitch? couldn't you saddle-stitch? couldn't they saddle-stitch?
V-ing form
couldn't I be saddle-stitching? couldn't you be saddle-stitching? couldn't he be saddle-stitching? couldn't we be saddle-stitching? couldn't you be saddle-stitching? couldn't they be saddle-stitching?
Perfect
couldn't I have saddle-stitched? couldn't you have saddle-stitched? couldn't he have saddle-stitched? couldn't we have saddle-stitched? couldn't you have saddle-stitched? couldn't they have saddle-stitched?
V-ing perfect
couldn't I have been saddle-stitching? couldn't you have been saddle-stitching? couldn't he have been saddle-stitching? couldn't we have been saddle-stitching? couldn't you have been saddle-stitching? couldn't they have been saddle-stitching?