I could cannonade you could cannonade she could cannonade we could cannonade you could cannonade they could cannonade
V-ing form
I could be cannonading you could be cannonading she could be cannonading we could be cannonading you could be cannonading they could be cannonading
Perfect
I could have cannonaded you could have cannonaded she could have cannonaded we could have cannonaded you could have cannonaded they could have cannonaded
V-ing perfect
I could have been cannonading you could have been cannonading she could have been cannonading we could have been cannonading you could have been cannonading they could have been cannonading
Negation
Simple form
I could not cannonade you could not cannonade she could not cannonade we could not cannonade you could not cannonade they could not cannonade
V-ing form
I could not be cannonading you could not be cannonading she could not be cannonading we could not be cannonading you could not be cannonading they could not be cannonading
Perfect
I could not have cannonaded you could not have cannonaded she could not have cannonaded we could not have cannonaded you could not have cannonaded they could not have cannonaded
V-ing perfect
I could not have been cannonading you could not have been cannonading she could not have been cannonading we could not have been cannonading you could not have been cannonading they could not have been cannonading
Interrogative form
Simple form
could I cannonade? could you cannonade? could she cannonade? could we cannonade? could you cannonade? could they cannonade?
V-ing form
could I be cannonading? could you be cannonading? could she be cannonading? could we be cannonading? could you be cannonading? could they be cannonading?
Perfect
could I have cannonaded? could you have cannonaded? could she have cannonaded? could we have cannonaded? could you have cannonaded? could they have cannonaded?
V-ing perfect
could I have been cannonading? could you have been cannonading? could she have been cannonading? could we have been cannonading? could you have been cannonading? could they have been cannonading?
Interro-negative form
Simple form
could I not cannonade? could you not cannonade? could she not cannonade? could we not cannonade? could you not cannonade? could they not cannonade?
V-ing form
could I not be cannonading? could you not be cannonading? could she not be cannonading? could we not be cannonading? could you not be cannonading? could they not be cannonading?
Perfect
could I not have cannonaded? could you not have cannonaded? could she not have cannonaded? could we not have cannonaded? could you not have cannonaded? could they not have cannonaded?
V-ing perfect
could I not have been cannonading? could you not have been cannonading? could she not have been cannonading? could we not have been cannonading? could you not have been cannonading? could they not have been cannonading?