I could arrest you could arrest she could arrest we could arrest you could arrest they could arrest
V-ing form
I could be arresting you could be arresting she could be arresting we could be arresting you could be arresting they could be arresting
Perfect
I could have arrested you could have arrested she could have arrested we could have arrested you could have arrested they could have arrested
V-ing perfect
I could have been arresting you could have been arresting she could have been arresting we could have been arresting you could have been arresting they could have been arresting
Negation
Simple form
I could not arrest you could not arrest she could not arrest we could not arrest you could not arrest they could not arrest
V-ing form
I could not be arresting you could not be arresting she could not be arresting we could not be arresting you could not be arresting they could not be arresting
Perfect
I could not have arrested you could not have arrested she could not have arrested we could not have arrested you could not have arrested they could not have arrested
V-ing perfect
I could not have been arresting you could not have been arresting she could not have been arresting we could not have been arresting you could not have been arresting they could not have been arresting
Interrogative form
Simple form
could I arrest? could you arrest? could she arrest? could we arrest? could you arrest? could they arrest?
V-ing form
could I be arresting? could you be arresting? could she be arresting? could we be arresting? could you be arresting? could they be arresting?
Perfect
could I have arrested? could you have arrested? could she have arrested? could we have arrested? could you have arrested? could they have arrested?
V-ing perfect
could I have been arresting? could you have been arresting? could she have been arresting? could we have been arresting? could you have been arresting? could they have been arresting?
Interro-negative form
Simple form
could I not arrest? could you not arrest? could she not arrest? could we not arrest? could you not arrest? could they not arrest?
V-ing form
could I not be arresting? could you not be arresting? could she not be arresting? could we not be arresting? could you not be arresting? could they not be arresting?
Perfect
could I not have arrested? could you not have arrested? could she not have arrested? could we not have arrested? could you not have arrested? could they not have arrested?
V-ing perfect
could I not have been arresting? could you not have been arresting? could she not have been arresting? could we not have been arresting? could you not have been arresting? could they not have been arresting?