| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | did not [verb] at the time | 29 |
|
| 2 | [verb] not know at the time | 14 |
|
| 3 | do not know at the time | 13 |
|
| 4 | did not know at the [noun] | 12 |
|
| 5 | [vb past] not know at the time | 12 |
|
| 6 | did not know at [art] time | 11 |
|
| 7 | did not know at the time | 11 |
|
| 8 | did not know at the time | 11 |
|
| 9 | did not know [prep] the time | 11 |
|
| 10 | did [adv] know at the time | 11 |
|
| 11 | did not know [prep] the time | 11 |
|
| 12 | did not know at [art] time | 11 |
|
