| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back to [pron] [noun sg] | 1298 |
|
| 2 | [adv] to its [noun sg] | 353 |
|
| 3 | back [prep] its [noun sg] | 165 |
|
| 4 | back to its [noun] | 58 |
|
