| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] happened at the | 8 |
|
| 2 | [prep] [Wh det] happened at the | 8 |
|
| 3 | [verb] [Wh det] happened at the | 6 |
|
| 4 | [Wh det] happened at the [noun] | 20 |
|
| 5 | [Wh det] happened at the [noun sg] | 16 |
|
