| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [modal v] [verb] when [pers pn] | 38 |
|
| 2 | [prep] [Wh det] [modal v] [verb] [pers pn] | 29 |
|
| 3 | [prep] [Wh det] [verb] when [pers pn] | 21 |
|
| 4 | [prep] [Wh det] [modal v] [verb] when | 18 |
|
