| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pron] had been | 7120 |
|
| 2 | [pron] had been [v-ing] | 3168 |
|
| 3 | [conj] had been [v-ing] | 209 |
|
| 4 | [conj] [pron] had [v-ing] | 6 |
|
