| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] had been [v-ing] [noun sg] | 30 |
|
| 2 | had been [v-ing] an [noun sg] | 24 |
|
| 3 | [noun prp] had been an [noun sg] | 18 |
|
| 4 | [noun prp] had been [v-ing] an | 11 |
|
