| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had been [v-ing] | 3168 |
|
| 2 | [pron] had been [art] | 3081 |
|
| 3 | had been [v-ing] [art] | 625 |
|
| 4 | [pron] been [v-ing] [art] | 29 |
|
