| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adv] [verb] | 17890 |
|
| 2 | [pron] [adv] happen | 954 |
|
| 3 | [pers pn] [adv] happen | 514 |
|
| 4 | it [adv] happen | 405 |
|
