| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [adv] happened [prep] | 50 |
|
| 2 | what [adv] happened [prep] | 40 |
|
| 3 | [Wh det] [adv] happened to | 25 |
|
| 4 | [Wh det] [adv] happened to | 25 |
|
| 5 | [Wh det] [adv] happened in | 13 |
|
| 6 | [Wh det] [adv] happened in | 13 |
|
| 7 | [Wh det] really happened [prep] | 12 |
|
| 8 | [Wh det] actually happened [prep] | 10 |
|
| 9 | which [adv] happened [prep] | 10 |
|
| 10 | [Wh det] [adv] happened at | 5 |
|
| 11 | [Wh det] ever happened [prep] | 5 |
|
| 12 | [Wh det] [adv] happened at | 5 |
|
