| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb pp] [prep] | 116631 |
|
| 2 | [vb pp] back [prep] | 3389 |
|
| 3 | [adv] back [prep] | 1636 |
|
| 4 | [adv] [vb pp] back | 751 |
|
