| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] 's happen | 538 |
|
| 2 | [Wh det] happen be | 243 |
|
| 3 | [Wh det] 's be | 177 |
|
| 4 | 's happen be | 25 |
|
