| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] [Wh det] [pers pn] | 756 |
|
| 2 | [prep] [Wh det] [pers pn] could | 704 |
|
| 3 | [vb pp] [Wh det] [pers pn] could | 26 |
|
| 4 | [vb pp] [prep] [pers pn] could | 17 |
|
| 5 | [vb pp] [prep] [Wh det] could | 14 |
|
