| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [prep] [det] [noun] | 577 |
|
| 2 | working [prep] [det] [noun] | 358 |
|
| 3 | been working [prep] [noun] | 129 |
|
| 4 | been working [prep] [det] | 44 |
|
| 5 | been working [det] [noun] | 10 |
|
