| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [v-ing] for [noun] | 81 |
|
| 2 | been [v-ing] for this [noun] | 21 |
|
| 3 | had been [v-ing] this [noun] | 15 |
|
| 4 | had been [v-ing] for this | 6 |
|
