| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had been [v-ing] | 3168 |
|
| 2 | what [pron] had been | 225 |
|
| 3 | what had been [v-ing] | 34 |
|
| 4 | what [pron] been [v-ing] | 24 |
|
