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