| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been referred to | 110 |
|
| 2 | [noun sg] [verb] been to | 86 |
|
| 3 | [noun sg] [verb] been referred | 34 |
|
| 4 | [noun sg] [verb] referred to | 26 |
|
