| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] happened [prep] [be] | 236 |
|
| 2 | [noun pl] [pron] happened [prep] | 20 |
|
| 3 | [noun pl] happened [prep] [be] | 15 |
|
| 4 | [noun pl] [pron] [prep] [be] | 11 |
|
