| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [v-ing] [prep] [noun] | 400 |
|
| 2 | that had been [v-ing] [prep] | 57 |
|
| 3 | that had been [prep] [noun] | 11 |
|
| 4 | that had been [v-ing] [noun] | 10 |
|
