| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [verb] [vb pp] back from | 11 |
|
| 2 | who have [vb pp] back from | 11 |
|
| 3 | who had [vb pp] back from | 6 |
|
| 4 | who [vb past] [vb pp] back from | 6 |
|
| 5 | who [verb] come back from | 6 |
|
