| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back over [art] | 153 |
|
| 2 | back over the | 142 |
|
| 3 | back over the | 142 |
|
| 4 | back over a | 11 |
|
| 5 | back over a | 11 |
|
