| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] know be that | 37 |
|
| 2 | [not/n't] know [be] that | 36 |
|
| 3 | [not/n't] know was that | 30 |
|
| 4 | [not/n't] know [was/were] that | 30 |
|
| 5 | n't know [be] that | 21 |
|
| 6 | not know [be] that | 16 |
|
| 7 | [not/n't] know is that | 7 |
|
| 8 | [not/n't] know [is] that | 7 |
|
