| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [verb] [adv] [verb] [prep] | 1100 |
|
| 2 | [verb] [adv] [verb] back [prep] | 383 |
|
| 3 | who [verb] [verb] back [prep] | 39 |
|
| 4 | who [verb] [adv] [verb] back | 21 |
|
