| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] happen to | 1292 |
|
| 2 | [adv] happen to | 394 |
|
| 3 | [Wh det] [adv] happen | 337 |
|
| 4 | [Wh det] [adv] to | 9 |
|
