| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [verb] been [verb] in | 643 |
|
| 2 | [Wh det] [verb] been happen [prep] | 55 |
|
| 3 | [Wh det] [verb] been happen [prep] | 55 |
|
| 4 | [Wh det] [verb] been happen in | 24 |
|
| 5 | [Wh det] [verb] [been] happen in | 24 |
|
| 6 | [Wh det] [verb] [be] happen in | 24 |
|
| 7 | [Wh det] [verb] be happen in | 24 |
|
| 8 | [pron] [verb] been happen in | 24 |
|
