| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [verb] [prep] a long | 17 |
|
| 2 | had been [verb] for a long | 12 |
|
| 3 | had been [vb pp] [prep] a long | 9 |
|
| 4 | had been [v-ing] [prep] a long | 8 |
|
