| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [verb] [pers pn] [verb] [pron] back | 8 |
|
| 2 | how [verb] [pers pn] [verb] [pers pn] back | 8 |
|
| 3 | how [verb] [pers pn] [verb] back [prep] | 9 |
|
| 4 | how [verb] [pers pn] [verb] back [prep] | 9 |
|
