| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [conj] [pron] [vb past] [adv] | 740 |
|
| 2 | back [conj] [pron] [vb past] [adv] | 59 |
|
| 3 | back [prep] [conj] [pron] [vb past] | 20 |
|
| 4 | back [prep] [conj] [vb past] [adv] | 7 |
|
