| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [adv] happened to [noun] | 6 |
|
| 2 | what [adv] happened to [noun] | 5 |
|
| 3 | what [adv] happened to [noun] | 5 |
|
| 4 | [Wh det] [adv] happened to [noun] | 5 |
|
