| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [verb] [prep] | 25734 |
|
| 2 | [Wh det] [vb -s] [prep] | 9119 |
|
| 3 | [Wh det] happen [prep] | 2328 |
|
| 4 | [pron] happens [prep] | 1203 |
|
