| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [been] at [art] [noun] | 130 |
|
| 2 | [been] working at [art] [noun] | 12 |
|
| 3 | had [been] working at [noun] | 7 |
|
| 4 | had [been] working at [art] | 6 |
|
