| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] [prep] [be] | 1843 |
|
| 2 | [prep] [pron] happened [prep] | 237 |
|
| 3 | [pron] happened [prep] [be] | 236 |
|
| 4 | [prep] [pron] happened [be] | 11 |
|
