| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [be] happen to | 90 |
|
| 2 | [prep] [Wh det] [be] happen to | 90 |
|
| 3 | at [Wh det] [be] happen [prep] | 20 |
|
| 4 | at [Wh det] [be] happen [prep] | 20 |
|
| 5 | at [Wh det] [be] [verb] to | 9 |
|
| 6 | at [Wh det] [be] happen to | 5 |
|
| 7 | at [Wh det] [be] happen to | 5 |
|
| 8 | at [pron] [be] happen to | 5 |
|
