| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb pp] back [prep] | 506 |
|
| 2 | [adv] [vb pp] back [prep] | 506 |
|
| 3 | [adv] [vb pp] [adv] on | 490 |
|
| 4 | [adv] [verb] back on | 155 |
|
| 5 | [adv] [vb pp] back on | 14 |
|
