| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] n't known [prep] | 10 |
|
| 2 | be n't know [prep] | 10 |
|
| 3 | [be] n't know [prep] | 10 |
|
| 4 | was n't know [prep] | 8 |
|
| 5 | [was/were] n't know [prep] | 8 |
|
| 6 | [be] n't know to | 6 |
|
| 7 | [be] n't know to | 6 |
|
