| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] worked at the [noun prp] | 8 |
|
| 2 | have worked at the [noun prp] | 8 |
|
| 3 | had worked at the [noun prp] | 6 |
|
| 4 | [vb past] worked at the [noun prp] | 6 |
|
| 5 | worked at the [noun prp] [noun] | 7 |
|
