| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [adv] [vb past] | 4311 |
|
| 2 | [adv] [vb past] on | 1316 |
|
| 3 | [Wh det] [vb past] on | 650 |
|
| 4 | [Wh det] [adv] on | 6 |
|
