| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | known at [det] [noun sg] | 21 |
|
| 2 | known at [adj] time | 13 |
|
| 3 | known at that [noun sg] | 11 |
|
| 4 | known at that [noun sg] | 11 |
|
| 5 | known at this [noun sg] | 8 |
|
| 6 | known at this [noun sg] | 8 |
|
