| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be happening at [art] time | 10 |
|
| 2 | be happening [prep] [art] time | 10 |
|
| 3 | be happening [prep] the time | 7 |
|
| 4 | was happening [prep] [art] time | 6 |
|
