| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] [adv] what happened to | 7 |
|
| 2 | [verb] [adv] [verb] what happened to | 40 |
|
| 3 | [verb] [adv] [vb infin] what happened to | 36 |
|
| 4 | [verb] [adv] know what happened to | 24 |
|
| 5 | [verb] [adv] know what happened to | 24 |
|
| 6 | [verb] [adv] care what happened to | 6 |
|
| 7 | [verb] [adv] care what happened to | 6 |
|
| 8 | [verb] [adv] what happened to [pron] | 12 |
|
| 9 | [verb] [adv] what happened to [pers pn] | 10 |
|
