| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [verb] [verb] back [prep] [art] | 9 |
|
| 2 | [Wh pn] [verb] [verb] back [prep] [art] | 9 |
|
| 3 | [Wh pn] [verb] [verb] back [prep] the | 8 |
|
| 4 | [Wh pn] [verb] [verb] back [prep] the | 8 |
|
| 5 | [Wh pn] [verb] [vb pp] back [prep] [art] | 7 |
|
| 6 | [Wh pn] have [verb] back [prep] [art] | 7 |
|
| 7 | [Wh pn] [verb] [verb] back from [art] | 6 |
|
