
Regular verb: exploit - exploited - exploited
Simple form | V-ing form | 
| I could exploit you could exploit he could exploit we could exploit you could exploit they could exploit  | I could be exploiting you could be exploiting he could be exploiting we could be exploiting you could be exploiting they could be exploiting  | 
Perfect | V-ing perfect | 
| I could have exploited you could have exploited he could have exploited we could have exploited you could have exploited they could have exploited  | I could have been exploiting you could have been exploiting he could have been exploiting we could have been exploiting you could have been exploiting they could have been exploiting  | 
Simple form | V-ing form | 
| I couldn't exploit you couldn't exploit he couldn't exploit we couldn't exploit you couldn't exploit they couldn't exploit  | I couldn't be exploiting you couldn't be exploiting he couldn't be exploiting we couldn't be exploiting you couldn't be exploiting they couldn't be exploiting  | 
Perfect | V-ing perfect | 
| I couldn't have exploited you couldn't have exploited he couldn't have exploited we couldn't have exploited you couldn't have exploited they couldn't have exploited  | I couldn't have been exploiting you couldn't have been exploiting he couldn't have been exploiting we couldn't have been exploiting you couldn't have been exploiting they couldn't have been exploiting  | 
Simple form | V-ing form | 
| could I exploit? could you exploit? could he exploit? could we exploit? could you exploit? could they exploit?  | could I be exploiting? could you be exploiting? could he be exploiting? could we be exploiting? could you be exploiting? could they be exploiting?  | 
Perfect | V-ing perfect | 
| could I have exploited? could you have exploited? could he have exploited? could we have exploited? could you have exploited? could they have exploited?  | could I have been exploiting? could you have been exploiting? could he have been exploiting? could we have been exploiting? could you have been exploiting? could they have been exploiting?  | 
Simple form | V-ing form | 
| couldn't I exploit? couldn't you exploit? couldn't he exploit? couldn't we exploit? couldn't you exploit? couldn't they exploit?  | couldn't I be exploiting? couldn't you be exploiting? couldn't he be exploiting? couldn't we be exploiting? couldn't you be exploiting? couldn't they be exploiting?  | 
Perfect | V-ing perfect | 
| couldn't I have exploited? couldn't you have exploited? couldn't he have exploited? couldn't we have exploited? couldn't you have exploited? couldn't they have exploited?  | couldn't I have been exploiting? couldn't you have been exploiting? couldn't he have been exploiting? couldn't we have been exploiting? couldn't you have been exploiting? couldn't they have been exploiting?  |