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