| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] so [that] | 96 |
|
| 2 | back so [that] | 46 |
|
| 3 | [vb past] back [that] | 24 |
|
| 4 | [vb past] back so | 19 |
|
