| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at the time | 1400 |
|
| 2 | [vb pp] at the time | 657 |
|
| 3 | know at the time | 64 |
|
| 4 | known at the [noun] | 52 |
|
| 5 | known [prep] the time | 31 |
|
| 6 | known [prep] the time | 31 |
|
| 7 | known at the time | 28 |
|
| 8 | known at the time | 28 |
|
| 9 | known at [art] time | 28 |
|
| 10 | known at [art] time | 28 |
|
