| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [Wh det] [verb] to | 126 |
|
| 2 | [adv] [Wh det] happened [prep] | 82 |
|
| 3 | [adv] [Wh det] happen to | 66 |
|
| 4 | [adv] [Wh det] [vb past] to | 66 |
|
| 5 | [adv] [Wh det] happened to | 59 |
|
| 6 | [adv] [pron] happened to | 54 |
|
