| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] [vb past] [pron] | 1245 |
|
| 2 | [prep] which [verb] [pron] | 754 |
|
| 3 | [prep] [Wh det] [vb past] [pron] | 148 |
|
| 4 | [prep] which [vb past] [pron] | 73 |
|
