| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb past] [verb] [pron] at | 8 |
|
| 2 | it [vb past] [vb pp] [pron] at | 6 |
|
| 3 | it [vb past] [verb] [pers pn] at | 6 |
|
| 4 | it had [verb] [pron] at | 6 |
|
