| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [verb] [vb pp] back to | 9 |
|
| 2 | [coord] have [vb pp] back to | 8 |
|
| 3 | and [verb] [vb pp] back to | 7 |
|
| 4 | [coord] had [vb pp] back to | 6 |
|
| 5 | [coord] [vb past] [vb pp] back to | 6 |
|
