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