| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] happen [prep] | 2328 |
|
| 2 | know [Wh det] happen | 251 |
|
| 3 | know [Wh det] [prep] | 92 |
|
| 4 | know happen [prep] | 5 |
|
