| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [Wh det] happened to | 209 |
|
| 2 | [to-vb] [Wh det] [verb] to | 123 |
|
| 3 | [to-vb] [Wh det] [vb past] to | 57 |
|
| 4 | [to-vb] [Wh det] happened [prep] | 50 |
|
| 5 | [to-vb] [Wh det] happen to | 44 |
|
| 6 | [to-vb] [pron] happened to | 27 |
|
