| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been working [prep] [art] | 34 |
|
| 2 | has been working [prep] the | 19 |
|
| 3 | has been working on [art] | 17 |
|
| 4 | has been working on [art] | 17 |
|
| 5 | has been working [prep] a | 12 |
|
