| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [verb] [pron] [vb past] | 1799 |
|
| 2 | back [conj] [verb] [pron] | 567 |
|
| 3 | back [conj] [pron] [vb past] | 394 |
|
| 4 | back [verb] [pron] [vb past] | 9 |
|
