| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] has been referred to | 10 |
|
| 2 | which has been referred to | 8 |
|
| 3 | which has been referred to | 8 |
|
| 4 | [pers pn] has been referred to | 5 |
|
| 5 | it has been referred to | 5 |
|
| 6 | it has been referred to | 5 |
|
