| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [pers pn] could | 704 |
|
| 2 | [subord] [prep] [Wh det] [pers pn] | 338 |
|
| 3 | [subord] [Wh det] [pers pn] could | 6 |
|
