| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] have been working at [art] | 7 |
|
| 2 | [pers pn] have been working at [art] | 6 |
|
| 3 | [noun] have been working at [art] | 5 |
|
| 4 | have been working at [art] [noun] | 12 |
|
| 5 | have been working at [art] [noun sg] | 9 |
|
