| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb past] been [verb] for [num] | 11 |
|
| 2 | who had been [verb] for [num] | 10 |
|
| 3 | who [vb past] been [v-ing] for [num] | 6 |
|
| 4 | who [vb past] been [vb pp] for [num] | 5 |
|
