| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adv] | 527778 |
|
| 2 | [adv] [adv] | 354196 |
|
| 3 | once [adv] | 6710 |
|
| 4 | once [adv] | 6549 |
|
