| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb mod] to | 3799 |
|
| 2 | [pron] happen to | 2077 |
|
| 3 | [pron] [vb mod] happen | 1819 |
|
| 4 | [vb mod] happen to | 507 |
|
