| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had be [v-ing] [prep] [noun] in | 12 |
|
| 2 | had been [v-ing] [prep] [noun] in | 12 |
|
| 3 | had be [v-ing] [prep] [noun sg] in | 7 |
|
