| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] [adv] to | 1592 |
|
| 2 | [to-vb] back to | 1564 |
|
| 3 | [adv] back to | 601 |
|
| 4 | [to-vb] [adv] back | 46 |
|
