| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what happen [conj] [pron] [vb base] | 200 |
|
| 2 | what happen [be] [conj] [pron] | 24 |
|
| 3 | happen [be] [conj] [pron] [vb base] | 21 |
|
| 4 | what happen [be] [pron] [vb base] | 5 |
|
