| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [noun prp] have been working | 28 |
|
| 2 | [noun] [noun prp] had been working | 16 |
|
| 3 | [noun] [noun prp] has been working | 12 |
|
| 4 | [noun sg] [noun prp] have been working | 5 |
|
