| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] [pron] back [prep] | 545 |
|
| 2 | [to-vb] [pron] back [prep] | 545 |
|
| 3 | [to-vb] [pron] [adv] at | 185 |
|
| 4 | [verb] [pron] back at | 97 |
|
| 5 | [to-vb] [pron] back at | 16 |
|
