| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [adv] know that | 189 |
|
| 2 | it [be] [not/n't] [adv] that | 178 |
|
| 3 | it [be] [not/n't] [adv] know | 59 |
|
| 4 | [be] [not/n't] [adv] know that | 7 |
|
| 5 | it [be] [not/n't] know that | 5 |
|
