| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what happened [prep] | 1257 |
|
| 2 | what happened to | 764 |
|
| 3 | what happened to | 764 |
|
| 4 | what happened in | 213 |
|
| 5 | what happened in | 213 |
|
| 6 | what happened at | 70 |
|
| 7 | what happened at | 70 |
|
| 8 | what happened on | 57 |
|
| 9 | what happened on | 57 |
|
| 10 | what happened with | 44 |
|
| 11 | what happened with | 44 |
|
| 12 | what happened after | 25 |
|
| 13 | what happened after | 25 |
|
| 14 | what happened between | 21 |
|
| 15 | what happened between | 21 |
|
| 16 | what happened during | 18 |
|
| 17 | what happened during | 18 |
|
| 18 | what happened about | 12 |
|
| 19 | what happened about | 12 |
|
| 20 | what happened before | 8 |
|
| 21 | what happened before | 8 |
|
| 22 | what happened from | 5 |
|
| 23 | what happened from | 5 |
|
| 24 | what happened over | 5 |
|
| 25 | what happened over | 5 |
|
