| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] to | 7880 |
|
| 2 | [be] referred to | 1499 |
|
| 3 | [adv] referred to | 1035 |
|
| 4 | [be] [adv] referred | 478 |
|
