| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be referred to | 96 |
|
| 2 | to be referred to | 91 |
|
| 3 | to be referred to | 91 |
|
| 4 | [prep] be referred to | 90 |
|
| 5 | [prep] being referred to | 6 |
|
