| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | happen [prep] the | 2571 |
|
| 2 | [vb mod] happen [prep] | 939 |
|
| 3 | [vb mod] [prep] the | 852 |
|
| 4 | [vb mod] happen the | 7 |
|
