I could off-load you could off-load he could off-load we could off-load you could off-load they could off-load
V-ing form
I could be off-loading you could be off-loading he could be off-loading we could be off-loading you could be off-loading they could be off-loading
Perfect
I could have off-loaded you could have off-loaded he could have off-loaded we could have off-loaded you could have off-loaded they could have off-loaded
V-ing perfect
I could have been off-loading you could have been off-loading he could have been off-loading we could have been off-loading you could have been off-loading they could have been off-loading
Negation
Simple form
I could not off-load you could not off-load he could not off-load we could not off-load you could not off-load they could not off-load
V-ing form
I could not be off-loading you could not be off-loading he could not be off-loading we could not be off-loading you could not be off-loading they could not be off-loading
Perfect
I could not have off-loaded you could not have off-loaded he could not have off-loaded we could not have off-loaded you could not have off-loaded they could not have off-loaded
V-ing perfect
I could not have been off-loading you could not have been off-loading he could not have been off-loading we could not have been off-loading you could not have been off-loading they could not have been off-loading
Interrogative form
Simple form
could I off-load? could you off-load? could he off-load? could we off-load? could you off-load? could they off-load?
V-ing form
could I be off-loading? could you be off-loading? could he be off-loading? could we be off-loading? could you be off-loading? could they be off-loading?
Perfect
could I have off-loaded? could you have off-loaded? could he have off-loaded? could we have off-loaded? could you have off-loaded? could they have off-loaded?
V-ing perfect
could I have been off-loading? could you have been off-loading? could he have been off-loading? could we have been off-loading? could you have been off-loading? could they have been off-loading?
Interro-negative form
Simple form
could I not off-load? could you not off-load? could he not off-load? could we not off-load? could you not off-load? could they not off-load?
V-ing form
could I not be off-loading? could you not be off-loading? could he not be off-loading? could we not be off-loading? could you not be off-loading? could they not be off-loading?
Perfect
could I not have off-loaded? could you not have off-loaded? could he not have off-loaded? could we not have off-loaded? could you not have off-loaded? could they not have off-loaded?
V-ing perfect
could I not have been off-loading? could you not have been off-loading? could he not have been off-loading? could we not have been off-loading? could you not have been off-loading? could they not have been off-loading?