| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be working at the [noun sg] | 37 |
|
| 2 | was working at [art] [noun sg] | 23 |
|
| 3 | be working at [art] time | 9 |
|
| 4 | been working at [art] [noun sg] | 9 |
|
| 5 | be working at a [noun sg] | 7 |
|
| 6 | were working at [art] [noun sg] | 5 |
|
