| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [adv] [vb past] at | 590 |
|
| 2 | [pron] [vb past] back at | 395 |
|
| 3 | [pron] [adv] [vb past] back | 265 |
|
| 4 | [adv] [vb past] back at | 59 |
|
| 5 | [pron] [adv] back at | 6 |
|
