I could persecute you could persecute he could persecute we could persecute you could persecute they could persecute
V-ing form
I could be persecuting you could be persecuting he could be persecuting we could be persecuting you could be persecuting they could be persecuting
Perfect
I could have persecuted you could have persecuted he 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 he 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 he 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 he 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 he 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 he 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 he persecute? could we persecute? could you persecute? could they persecute?
V-ing form
could I be persecuting? could you be persecuting? could he be persecuting? could we be persecuting? could you be persecuting? could they be persecuting?
Perfect
could I have persecuted? could you have persecuted? could he 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 he 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 he 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 he 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 he 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 he have been persecuting? couldn't we have been persecuting? couldn't you have been persecuting? couldn't they have been persecuting?