| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] so [adv] [verb] | 21 |
|
| 2 | [Wh det] [vb past] so [adv] [vb pp] | 21 |
|
| 3 | [Wh det] had so [adv] [verb] | 20 |
|
| 4 | [Wh det] [vb past] so far [verb] | 6 |
|
