| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] happen be | 14 |
|
| 2 | [prep] [pron] happened [be] | 11 |
|
| 3 | [prep] [Wh det] happen [be] | 10 |
|
| 4 | [prep] what happen [be] | 10 |
|
| 5 | [prep] what happen [be] | 10 |
|
| 6 | [prep] [pron] happen [is] | 7 |
|
| 7 | [prep] [pron] happen is | 7 |
|
| 8 | of [pron] happen [be] | 6 |
|
