| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know what happened to | 69 |
|
| 2 | know [pron] happened to | 69 |
|
| 3 | know what happened to | 69 |
|
| 4 | know [Wh det] happened to | 69 |
|
| 5 | know [pron] happened to | 37 |
|
| 6 | know [pron] happened to | 12 |
|
| 7 | to know [pron] happened to | 9 |
|
| 8 | knows [pron] happened to | 5 |
|
