| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] had been [adv] | 2479 |
|
| 2 | [noun] had been [v-ing] | 2088 |
|
| 3 | had been [v-ing] [adv] | 506 |
|
| 4 | [noun] been [v-ing] [adv] | 19 |
|
