| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [prep] [art] | 79871 |
|
| 2 | once [prep] [art] | 1150 |
|
| 3 | [det] once [art] | 12 |
|
| 4 | [det] once [prep] | 8 |
|
