| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | happening at the | 60 |
|
| 2 | happened at the | 60 |
|
| 3 | happens at the | 38 |
|
| 4 | happened at the | 26 |
|
| 5 | happen at the | 21 |
|
| 6 | happen at the | 6 |
|
