| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had been [v-ing] | 3168 |
|
| 2 | had been [v-ing] on | 101 |
|
| 3 | [pron] been [v-ing] on | 13 |
|
| 4 | [pron] had been on | 5 |
|
