| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] not know at the [noun sg] | 21 |
|
| 2 | [verb] not know at the [noun] | 20 |
|
| 3 | do not know at the [noun] | 20 |
|
| 4 | [verb] n't know at the [noun] | 17 |
|
| 5 | [verb] not know at the time | 14 |
|
| 6 | [verb] not know at the time | 14 |
|
| 7 | [vb past] not know at the [noun] | 13 |
|
| 8 | did not know at the [noun] | 12 |
|
| 9 | [vb base] not know at the [noun] | 6 |
|
| 10 | do not know at the [noun] | 6 |
|
| 11 | [verb] not know at the moment | 5 |
|
| 12 | [verb] not know at the moment | 5 |
|
