| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [coord] [adv] | 3361 |
|
| 2 | once [coord] [adv] | 541 |
|
| 3 | [pron] once [adv] | 390 |
|
| 4 | [pron] once [coord] | 111 |
|
