| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | happen [prep] be at the | 8 |
|
| 2 | happen [prep] be at the | 8 |
|
| 3 | happen to be at the | 8 |
|
| 4 | happen [prep] be at the | 8 |
|
| 5 | happen to be at the | 8 |
|
| 6 | happened [prep] be at the | 5 |
|
