| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [v-ing] [prep] [adj] | 90 |
|
| 2 | had been [v-ing] [prep] an | 31 |
|
| 3 | been [v-ing] [prep] an [adj] | 30 |
|
| 4 | had been [v-ing] an [adj] | 16 |
|
| 5 | had been [prep] an [adj] | 8 |
|
