| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [v-ing] [prep] a | 216 |
|
| 2 | she had been [v-ing] [prep] | 163 |
|
| 3 | she had been [prep] a | 28 |
|
| 4 | she had been [v-ing] a | 27 |
|
