| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] [pos pn] | 25005 |
|
| 2 | which [vb past] [prep] | 8214 |
|
| 3 | which [vb past] [pos pn] | 1450 |
|
| 4 | which [prep] [pos pn] | 375 |
|
