| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [not/n't] to know [pron] | 10 |
|
| 2 | [be] [not/n't] to know [pers pn] | 8 |
|
| 3 | [be] not to know [pron] | 7 |
|
| 4 | [was/were] [not/n't] to know [pron] | 6 |
|
