| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [Wh pn] had been [v-ing] | 12 |
|
| 2 | [pron] [Wh pn] had [been] [v-ing] | 12 |
|
| 3 | [pron] who had [be] [v-ing] | 12 |
|
| 4 | [pron] [Wh pn] had be [v-ing] | 12 |
|
| 5 | [indef pn] [Wh pn] had [be] [v-ing] | 9 |
|
