| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb -s] been [verb] for the | 8 |
|
| 2 | [Wh pn] [vb -s] been [verb] for the | 8 |
|
| 3 | [Wh pn] has been [verb] for the | 8 |
|
| 4 | [Wh pn] [vb -s] been [v-ing] for the | 5 |
|
