| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [pers pn] [adv] [verb] when | 6 |
|
| 2 | [prep] [Wh det] [pers pn] [adv] [verb] when | 6 |
|
| 3 | [Wh det] [pers pn] [adv] [verb] when [pers pn] | 10 |
|
| 4 | [Wh det] [pers pn] [adv] [verb] when [pron] | 10 |
|
