| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] have been working [prep] | 30 |
|
| 2 | [noun pl] have been working [prep] | 18 |
|
| 3 | [noun pl] have been working on | 10 |
|
| 4 | [noun pl] have been working on | 10 |
|
| 5 | [noun pl] had been working [prep] | 8 |
|
