| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [vb -s] happen [prep] the | 125 |
|
| 2 | [adv] [Wh det] happen [prep] the | 43 |
|
| 3 | [adv] [Wh det] [vb -s] happen [prep] | 35 |
|
| 4 | [adv] [Wh det] [vb -s] [prep] the | 31 |
|
