| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] [verb] at the time | 99 |
|
| 2 | [be] [adv] [vb pp] at the time | 90 |
|
| 3 | [be] [adv] known at the [noun] | 11 |
|
| 4 | [be] [adv] known [prep] the time | 5 |
|
| 5 | [be] [adv] know at the time | 5 |
|
| 6 | [be] [adv] known at [art] time | 5 |
|
| 7 | [be] [adv] known at [art] time | 5 |
|
| 8 | [be] [adv] known at the time | 5 |
|
