| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [to-vb] back to | 758 |
|
| 2 | [vb past] [to-vb] [adv] to | 746 |
|
| 3 | [vb past] [verb] back to | 390 |
|
| 4 | [vb past] [to-vb] back [prep] | 386 |
|
