| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | worked at the | 103 |
|
| 2 | [Wh pn] at the | 79 |
|
| 3 | [Wh pn] worked at | 65 |
|
| 4 | [Wh pn] worked the | 13 |
|
