| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb pp] back [prep] | 457 |
|
| 2 | 's [adv] [vb pp] [prep] | 183 |
|
| 3 | 's [vb pp] back [prep] | 51 |
|
| 4 | 's [adv] [vb pp] back | 12 |
|
