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