| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [v-ing] for | 496 |
|
| 2 | had been [v-ing] [adj] | 389 |
|
| 3 | had been [adj] for | 389 |
|
| 4 | been [v-ing] [adj] for | 76 |
|
