| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] know for [art] [noun sg] | 9 |
|
| 2 | [not/n't] know for a [noun] | 7 |
|
| 3 | [not/n't] know for [art] [noun] | 6 |
|
| 4 | n't know for [art] [noun] | 6 |
|
