| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had been [v-ing] | 3168 |
|
| 2 | [verb] [pron] had been | 1217 |
|
| 3 | [verb] [pron] been [v-ing] | 456 |
|
| 4 | [verb] had been [v-ing] | 14 |
|
