| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] at [noun] | 5964 |
|
| 2 | work at [noun] | 642 |
|
| 3 | [vb past] work at | 91 |
|
| 4 | [vb past] work [noun] | 35 |
|
