| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] happened [prep] the | 401 |
|
| 2 | [Wh det] happened [prep] the | 401 |
|
| 3 | [Wh det] [verb] at the | 374 |
|
| 4 | [Wh det] [vb past] at the | 145 |
|
| 5 | [Wh det] happen at the | 44 |
|
| 6 | [pron] happened at the | 33 |
|
| 7 | [Wh det] happened at [art] | 26 |
|
| 8 | [Wh det] happened at [art] | 26 |
|
| 9 | [Wh det] happened at the | 24 |
|
| 10 | [Wh det] happened at the | 24 |
|
