| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] [verb] [prep] | 8411 |
|
| 2 | [prep] [pron] [vb past] [prep] | 2506 |
|
| 3 | [prep] [pron] happen [prep] | 435 |
|
| 4 | [prep] [pron] happened [prep] | 237 |
|
