| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be [vb pp] [prep] | 52271 |
|
| 2 | happen be [verb] [prep] | 8 |
|
| 3 | happen be [vb pp] [prep] | 7 |
|
| 4 | happen [be] [vb pp] [prep] | 7 |
|
