| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] back [prep] [subord] [pron] [verb] | 18 |
|
| 2 | [verb] back [prep] [subord] [pers pn] [verb] | 17 |
|
| 3 | [verb] back [prep] [subord] he [verb] | 5 |
|
| 4 | [verb] back [prep] [subord] he [verb] | 5 |
|
