| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [vb -s] actually happen [prep] | 5 |
|
| 2 | what [vb -s] actually happen [prep] | 5 |
|
| 3 | [pron] [vb -s] actually happen [prep] | 5 |
|
| 4 | [Wh det] [vb -s] actually happen [prep] | 5 |
|
