| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] [pron] | 4766 |
|
| 2 | [vb past] [pron] so | 809 |
|
| 3 | which [vb past] so | 157 |
|
| 4 | which [pron] so | 31 |
|
