| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] that have been referred | 6 |
|
| 2 | that have been referred [prep] | 7 |
|
| 3 | that have been referred [prep] | 7 |
|
| 4 | that have been referred to | 6 |
|
| 5 | that have been referred to | 6 |
|
