| Gerund |
-
|
| Present simple (ott) |
I can you can he can we can you can they can
|
| Present perfect (vtt) |
-
|
| Past Simple (ovt) |
I could you could he could we could you could they could
|
| Past perfect (vvt) |
-
|
| Present future (ottt) |
-
|
| Present future perfect (vttt) |
-
|
| Past future (ovtt) |
-
|
| Past future perfect (vvtt) |
-
|