| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [verb] [prep] a long | 17 |
|
| 2 | [vb past] been [verb] for a long | 13 |
|
| 3 | [vb past] been [vb pp] [prep] a long | 9 |
|
| 4 | [vb past] been [v-ing] [prep] a long | 9 |
|
