| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [v-ing] [noun prp] [prep] | 20 |
|
| 2 | had been [v-ing] [noun prp] for | 5 |
|
| 3 | had been [v-ing] [noun prp] on | 5 |
|
| 4 | had been [v-ing] [noun prp] on | 5 |
|
| 5 | had been [v-ing] [noun prp] for | 5 |
|
