| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [v-ing] [noun] | 490 |
|
| 2 | had been [v-ing] of | 31 |
|
| 3 | been [v-ing] of [noun] | 29 |
|
| 4 | had been of [noun] | 15 |
|
