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