| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] go on behind the [noun pl] | 7 |
|
| 2 | what go on behind the [noun] | 7 |
|
| 3 | [Wh det] go on behind the scene | 6 |
|
| 4 | [Wh det] go on behind the scenes | 6 |
|
