| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [coord] [adv] | 5030 |
|
| 2 | once [coord] [adv] | 541 |
|
| 3 | [vb pp] once [adv] | 208 |
|
| 4 | [vb pp] once [coord] | 74 |
|
