| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] in [art] | 428 |
|
| 2 | [vb mod] happen in | 195 |
|
| 3 | happen in [art] | 136 |
|
| 4 | [vb mod] happen [art] | 13 |
|
