| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [not/n't] know it at the | 12 |
|
| 2 | did [not/n't] know it at the | 12 |
|
| 3 | [vb past] [not/n't] know it at the | 12 |
|
| 4 | do [not/n't] know it at the | 12 |
|
| 5 | [not/n't] know it at the time | 12 |
|
| 6 | [not/n't] know it at the [noun] | 12 |
|
| 7 | [not/n't] know it at the time | 12 |
|
| 8 | [not/n't] know it at the [noun sg] | 12 |
|
