| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] at [det] time | 37 |
|
| 2 | [Wh pn] at [det] time | 37 |
|
| 3 | who at [det] time | 35 |
|
| 4 | [Wh pn] at that time | 25 |
|
