| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be referred to the | 99 |
|
| 2 | been referred to the | 32 |
|
| 3 | were referred to the | 26 |
|
| 4 | was referred to the | 23 |
|
| 5 | are referred to the | 18 |
|
| 6 | be referred to the | 17 |
|
| 7 | is referred to the | 15 |
|
| 8 | being referred to the | 5 |
|
