| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who had [adv] been [v-ing] | 42 |
|
| 2 | [Wh pn] had [adv] been [v-ing] | 39 |
|
| 3 | [Wh pn] had also been [v-ing] | 7 |
|
| 4 | [Wh pn] had also been [v-ing] | 7 |
|
| 5 | [Wh pn] had [adv] been working | 5 |
|
