| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [adv] happen [prep] | 102 |
|
| 2 | [Wh det] [adv] happen [prep] | 102 |
|
| 3 | [Wh det] really [verb] [prep] | 49 |
|
| 4 | [pron] really happen [prep] | 16 |
|
| 5 | [Wh det] really happen [prep] | 15 |
|
