| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] had been [v-ing] | 2088 |
|
| 2 | [noun] had been in | 509 |
|
| 3 | had been [v-ing] in | 279 |
|
| 4 | [noun] been [v-ing] in | 9 |
|
