| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have [verb] | 14685 |
|
| 2 | [pron] have happen | 2700 |
|
| 3 | it [verb] happen | 427 |
|
| 4 | [pers pn] have happen | 367 |
|
| 5 | it have happen | 341 |
|
