| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] [pron] happened to | 16 |
|
| 2 | [adv] [verb] what happened to | 16 |
|
| 3 | [adv] [verb] what happened to | 16 |
|
| 4 | [adv] [verb] [Wh det] happened to | 16 |
|
| 5 | [adv] know [pron] happened to | 5 |
|
| 6 | [adv] [vb base] [pron] happened to | 5 |
|
| 7 | [adv] wonder [pron] happened to | 5 |
|
