I could persecute you could persecute she could persecute we could persecute you could persecute they could persecute
V-ing form
I could be persecuting you could be persecuting she could be persecuting we could be persecuting you could be persecuting they could be persecuting
Perfect
I could have persecuted you could have persecuted she could have persecuted we could have persecuted you could have persecuted they could have persecuted
V-ing perfect
I could have been persecuting you could have been persecuting she could have been persecuting we could have been persecuting you could have been persecuting they could have been persecuting
Negation
Simple form
I couldn't persecute you couldn't persecute she couldn't persecute we couldn't persecute you couldn't persecute they couldn't persecute
V-ing form
I couldn't be persecuting you couldn't be persecuting she couldn't be persecuting we couldn't be persecuting you couldn't be persecuting they couldn't be persecuting
Perfect
I couldn't have persecuted you couldn't have persecuted she couldn't have persecuted we couldn't have persecuted you couldn't have persecuted they couldn't have persecuted
V-ing perfect
I couldn't have been persecuting you couldn't have been persecuting she couldn't have been persecuting we couldn't have been persecuting you couldn't have been persecuting they couldn't have been persecuting
Interrogative form
Simple form
could I persecute? could you persecute? could she persecute? could we persecute? could you persecute? could they persecute?
V-ing form
could I be persecuting? could you be persecuting? could she be persecuting? could we be persecuting? could you be persecuting? could they be persecuting?
Perfect
could I have persecuted? could you have persecuted? could she have persecuted? could we have persecuted? could you have persecuted? could they have persecuted?
V-ing perfect
could I have been persecuting? could you have been persecuting? could she have been persecuting? could we have been persecuting? could you have been persecuting? could they have been persecuting?
Interro-negative form
Simple form
couldn't I persecute? couldn't you persecute? couldn't she persecute? couldn't we persecute? couldn't you persecute? couldn't they persecute?
V-ing form
couldn't I be persecuting? couldn't you be persecuting? couldn't she be persecuting? couldn't we be persecuting? couldn't you be persecuting? couldn't they be persecuting?
Perfect
couldn't I have persecuted? couldn't you have persecuted? couldn't she have persecuted? couldn't we have persecuted? couldn't you have persecuted? couldn't they have persecuted?
V-ing perfect
couldn't I have been persecuting? couldn't you have been persecuting? couldn't she have been persecuting? couldn't we have been persecuting? couldn't you have been persecuting? couldn't they have been persecuting?