| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] to [adv] | 2173 |
|
| 2 | back [prep] [adv] | 622 |
|
| 3 | back [prep] [adv] | 622 |
|
| 4 | back to [adv] | 293 |
|
| 5 | back to [adv] | 111 |
|
