| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been referred to the | 26 |
|
| 2 | [verb] been referred to the | 26 |
|
| 3 | had been referred to the | 11 |
|
| 4 | [vb past] been referred to the | 11 |
|
| 5 | [vb -s] been referred to the | 8 |
|
| 6 | has been referred to the | 8 |
|
| 7 | have been referred to the | 5 |
|
| 8 | [vb base] been referred to the | 5 |
|
