| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] n't know [prep] [adj] | 230 |
|
| 2 | [verb] n't know [adj] [noun] | 131 |
|
| 3 | [verb] n't know [prep] [noun] | 87 |
|
| 4 | n't know [prep] [adj] [noun] | 47 |
|
| 5 | [verb] n't [prep] [adj] [noun] | 33 |
|
