| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [Wh pn] had been working | 7 |
|
| 2 | [noun pl] [Wh pn] had been working | 5 |
|
| 3 | [Wh pn] had [adv] been working | 5 |
|
| 4 | [Wh pn] had [adv] been working | 5 |
|
| 5 | [Wh pn] had been working [prep] | 12 |
|
| 6 | [Wh pn] had been working [prep] | 12 |
|
| 7 | [Wh pn] had been working in | 5 |
|
| 8 | [Wh pn] had been working in | 5 |
|
