| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] at the time | 76 |
|
| 2 | [be] [adv] known at the | 12 |
|
| 3 | [adv] known at the time | 8 |
|
| 4 | [be] known at the time | 8 |
|
