| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [v-ing] [adv] for | 84 |
|
| 2 | had been [v-ing] for some | 40 |
|
| 3 | been [v-ing] [adv] for some | 31 |
|
| 4 | had been [adv] for some | 12 |
|
