| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] [vb mod] [adv] happen | 7 |
|
| 2 | [prep] [pron] [vb mod] [adv] happen | 7 |
|
| 3 | [prep] what [vb mod] [adv] happen | 6 |
|
| 4 | [prep] what [vb mod] [adv] happen | 6 |
|
| 5 | [prep] [Wh det] [vb mod] [adv] happen | 6 |
|
