| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [Wh det] [verb] to | 70 |
|
| 2 | [be] [Wh det] happened [prep] | 69 |
|
| 3 | [be] [Wh det] [vb past] to | 48 |
|
| 4 | [be] [Wh det] happen to | 42 |
|
| 5 | [be] [pron] happened to | 33 |
|
