| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at the [det] time a | 115 |
|
| 2 | [be] at the [det] time | 113 |
|
| 3 | [be] at [det] time a | 18 |
|
| 4 | [be] at the time a | 7 |
|
