| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] had been [verb] for [num] | 17 |
|
| 2 | [noun prp] [vb past] been [vb pp] for [num] | 12 |
|
| 3 | [noun prp] [vb past] been [v-ing] for [num] | 5 |
|
