| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] has happen | 629 |
|
| 2 | [vb infin] [pron] happen | 471 |
|
| 3 | [vb infin] [pron] has | 326 |
|
| 4 | [vb infin] has happen | 6 |
|
