| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it [verb] [prep] | 3419 |
|
| 2 | [verb] it [vb past] [prep] | 549 |
|
| 3 | [verb] [pron] happened [prep] | 317 |
|
| 4 | [verb] it happen [prep] | 88 |
|
| 5 | [verb] [pers pn] happened [prep] | 17 |
|
| 6 | [verb] it happened [prep] | 12 |
|
