| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] happened [prep] [adj] | 174 |
|
| 2 | [Wh det] [adv] happened [prep] | 50 |
|
| 3 | [Wh det] [adv] [prep] [adj] | 27 |
|
| 4 | [adv] happened [prep] [adj] | 23 |
|
