| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be know at that time | 5 |
|
| 2 | be know at that time | 5 |
|
| 3 | be know at [det] time | 5 |
|
| 4 | be know at [adj] time | 5 |
|
| 5 | be known at [adj] time | 5 |
|
