| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [pron] [prep] | 10327 |
|
| 2 | [pron] back [prep] | 3542 |
|
| 3 | [vb -s] back [prep] | 1368 |
|
| 4 | [vb -s] [pron] back | 379 |
|
