| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] known at the [noun] | 11 |
|
| 2 | [be] [adv] known at the [noun sg] | 10 |
|
| 3 | [was/were] [adv] known at the [noun] | 8 |
|
| 4 | [be] not known at the [noun] | 6 |
|
| 5 | [be] [not/n't] known at the [noun] | 6 |
|
| 6 | [be] not known at the [noun] | 6 |
|
| 7 | [be] [adv] known at the time | 5 |
|
| 8 | [be] [adv] known at the [noun] | 5 |
|
| 9 | [be] [adv] known at the time | 5 |
|
