| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adv] [verb] a | 1359 |
|
| 2 | [prep] [adv] [verb] a | 1046 |
|
| 3 | [prep] once [verb] [art] | 78 |
|
| 4 | [prep] once [verb] a | 26 |
|
