| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [verb] [prep] [be] [prep] | 55 |
|
| 2 | [pron] happen [prep] [be] [prep] | 29 |
|
| 3 | which [vb base] [prep] [be] [prep] | 18 |
|
| 4 | which happen [prep] [be] [prep] | 8 |
|
| 5 | which happen [prep] [be] [prep] | 6 |
|
| 6 | [Wh det] happen [prep] [be] [prep] | 6 |
|
| 7 | which happen [prep] [be] [prep] | 6 |
|
| 8 | which happen [prep] [be] [prep] | 6 |
|
