| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [vb past] [art] [noun sg] | 4712 |
|
| 2 | once [vb past] [art] [noun sg] | 267 |
|
| 3 | [Wh det] once [vb past] [art] | 30 |
|
| 4 | [Wh det] once [vb past] [noun sg] | 7 |
|
