| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [adv] happened to | 25 |
|
| 2 | [Wh det] [adv] happened to | 25 |
|
| 3 | [pron] ever happened to | 7 |
|
| 4 | [Wh det] ever happen to | 5 |
|
| 5 | [Wh det] ever [verb] to | 5 |
|
| 6 | [Wh det] ever happened to | 5 |
|
| 7 | [Wh det] ever happened [prep] | 5 |
|
| 8 | [Wh det] ever [vb past] to | 5 |
|
