| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | happened [prep] [art] time | 10 |
|
| 2 | happened [prep] [art] time | 10 |
|
| 3 | happened at [art] time | 9 |
|
| 4 | happened at [art] time | 9 |
|
| 5 | happened [prep] the time | 7 |
|
