| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] back and forward | 18 |
|
| 2 | [v-ing] back and forward | 7 |
|
| 3 | [noun] back and forward | 5 |
|
| 4 | rock back and forward | 5 |
|
| 5 | back and [verb] forward | 6 |
|
| 6 | back and forward [prep] | 11 |
|
| 7 | back and forward [prep] | 11 |
|
