| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] [art] | 23418 |
|
| 2 | it [vb past] [art] | 8566 |
|
| 3 | it happen [art] | 52 |
|
| 4 | [pron] happened [art] | 52 |
|
| 5 | [pers pn] happened [art] | 25 |
|
| 6 | it happened [art] | 25 |
|
