| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [verb] [to-vb] for [noun] | 13 |
|
| 2 | had been [vb pp] [verb] for [noun] | 9 |
|
| 3 | had been [verb] [verb] for [noun pl] | 8 |
|
| 4 | had been [v-ing] [verb] for [noun] | 5 |
|
