| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] happened [prep] [be] pass | 7 |
|
| 2 | [pron] happened [prep] be pass | 7 |
|
| 3 | [pron] happened to [be] pass | 7 |
|
| 4 | [pron] happened [prep] be pass | 7 |
|
| 5 | [pron] happened to [be] pass | 7 |
|
| 6 | [pron] happened [prep] [be] passing | 7 |
|
| 7 | [pron] happened [prep] [be] pass | 7 |
|
