| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] i [vb base] | 18668 |
|
| 2 | once [adv] i | 89 |
|
| 3 | once [adv] [vb base] | 85 |
|
| 4 | once i [vb base] | 23 |
|
